There are two methods for generating pregnancies: Game Term (per diem, based on days character had sex) and Fast Roll. The latter is described first.
Birth Type | Conditions | Control | Chance of Conception -----+-----------------------------+---------+------------------------ A | Actively trying to conceive | None | 2D6% per month* B | Highly active sexually | None | 1D6% per month* C | Normal sexual activity | None | 1D4% per month* D | Sexually active | minor# | 1D6% per quarter* E | Sexually active | major# | 1D4% per year*
* Roll for each year or fraction of a year (such as the rest of a year after an April birth, etc.).
# Minor precautions are the Rhythm Method or over the counter devices.
Major precautions are "the Pill", Vasectomy or cut Fallopian tubes. In the latter two cases, there is a slight chance of pregnancy due to the occasional regeneration of tissue (rare, but it does happen). Note that use of a Robotech protoculture sizing chamber, use of any of the RiftsBio-Regeneration powers or possession of the Heroes Unlimited power Healing Factor will reverse those operations, whether the person wants them reversed or not!
If the roll is successful, Roll 1D12 for month and 1D30 for day of conception. If a result of February 29th (in non-leap years) or February 30th results, then the day is the 31st of one on the following months (roll 2D4-1): 1: January, 2: March, 3: May, 4: July, 5: August, 6: October, 7: December. Once day of conception is determined, roll on Table B.
Day(s) of Cycle | Chance of Conception -----------------+---------------------- Days 1-8 | 1% per day(0/0%)* Days 9-10 | 3% per day(1/0%) Days 11-12 | 5% per day(2/1%) Days 13-14 | 10% per day(3/1%) Days 15-18 | 15% per day(4/2%) Days 19-20 | 10% per day(3/1%) Days 21-22 | 5% per day(2/1%) Days 23-24 | 3% per day(1/0%) Days 25 and up | 1% per day(0/0%) * Number in "()" are with minor/major protection.
Modifier | To Tables | Given for
----------+-------------+-------------------------------------------
-5% | A1/A2, B | One or more previous miscarriages
+10% | A1/A2, B, C | Woman taking fertility drugs
+5% | B, C | Woman's family has history of mult. births
Roll(d%) | Type
--------------+-------------------------------------------------------------------------
-3 or below | Second Trimester Miscarriage (6D6 direct to HP - Save vs. Lethal Poison
| or enter coma (if not comatose already).
-2 to 2 | First Trimester Miscarriage (4D6 direct to HP - Save vs. Lethal Poison
| to only take 1/2 damage).
3 to 9 | Premature birth (by 3D4 weeks), roll again, rerolling results under 10.
10 to 96 | Single birth (roll 1D6: odd = boy, even = girl).
97 to 99 | Multiple Birth (go to Table C.).
100 | Special! In Robotech, child is special in some way
| (BtS P.C.C. or other special attributes, like a bonus in one attribute)
| In the supernatural RPGs, child has potential to be a Master Psychic.
101 to 114 | Multiple Birth (go to Table C.).
115 | Multiple Special Birth! Go to Table C., plus the effects listed for "100"
| above apply to all children in the multiple birth. The powers gained may
| differ between fraternal siblings, but will be same in identical siblings.
Roll(d%) | Type
-------------+-------------------------------------------------------------------------
01 - 45 | Identical Twins (roll 1D6: odd = boys, even = girls).
46 - 50 | Half-Identical Twins (Ova divided before fertilization)
| Roll 1d4 - 1: boys, 2: girls, 3-4: one boy, one girl.
51 - 90 | Fully Fraternal Twins: Determine sexes as in 46-50.
91 - 99 | Triplets: Roll 2D4 (+1 if of Tiresian, Zentraedi and/or Invid ancestry).
| 2 : All Three Fraternal;
| 3-6 : One pair identical + one fraternal child.
| 7-9: All three identical.
100 - 104 | Quadruplets! Roll as two sets of twins (on this table, D%-10. If
| first roll negative, then all four children are identical).
105 - 109 | Quintuplets! Reroll Roll as one set of twins (D%-10,
| Negatives are Identical Twins) and one set of triplets.
110 - 115 | Special! Roll twice on this table (with modifiers, rerolling 110-115,
| then add the two results. This will result in 4-10 children.
| Subtract 3 weeks from pregnancy length for every two babies (resulting
| in a premature birth), and each child will have to make coma/death checks
| every day until the original due date, at a penalty of -2% per week until
| the normal due date, with the penalty reducing as the date approaches.
| If a check is failed, that child slips into a coma, and must be brought
| out of the coma to survive.
Death(slips into coma, must be brought out or die);
Brain Damage(IQ: 3D4); a Restoration spell will reverse in a baby only;
or Weak Immune System(PE: 3D4); also reversible by Restoration.
Modifiers for Racial Heritage
|| Praxian| 1/2 Zentraedi | Full Zentraedi - Father is:
Stat. | Base || Mother | Z. Mom | Z. Dad | So1dier | Officer | Command
------+------++--------+--------+--------+---------+---------+-------
I.Q. | 3D6 || -1D4 | +1D4 | | -1D4 | +1D4 | +1D6
M.E. | 3D6 || -1D6 | | | -1D6 | -1D4 |
M.A. | 3D6 || -1D4 | | | -1D6 | -1D4 |
P.S. | 3D6 || +1D6 | | +1D4 | +1D4 | +1D6 | +2D4
P.P. | 3D6 || +1D4 | +1D4 | | | +1D4 | +1D6
P.E. | 3D6 || +1D6 | | +1D4 | +1D4 | +2D4 | +1D6+4
P.B. | 3D6 || +1D6 | | | | |
Speed | 3D6 || +1D4 | | | | |
Perc. | 3D6 || +1D4 | | | | +1D4 | +1D6
NOTES:
Normals are typical humans, as well as Tyroleans (who get +1D4 to P.B.)
1/2 Praxians: these bonuses & penalties are cumulative with those for a Zentraedi father, if applicable.
1/2 Zentraedi: This category includes persons with 26% to 69% Zentraedi ancestry. Use the "parent" column
for closest Zentraedi ancestor. If the character's parents are both 1/2 Zentraedi, and the chi1d has a
Zentraedi grandfather on one side, and a Zentraedi grandmother on the other, use both columns bonuses.
Full Zentraedi: Includes persons with 70% or more Zentraedi ancestry. If the father is not a full
Zentraedi, use the column for the best type of male Zentraedi ancestor possessed by either
parent.
If no male Zentraedi blood possessed (father descended from female Zentraedi and humans, and mother
is a cloned Zentraedi), treat as an "Officer".
Typical Pregnancy Length: 34+1D6 weeks
Pregnancy Begins Showing: 13+1D6 weeks
Typical Birth Weight: 2D4+3 lbs. Subtract 1 lb. per baby for each baby in a multiple birth (twins = -2 lbs. each, triplets = -31bs. each, etc.). Minimum weight for game purposes is 1 lb. each.
Puberty: Girls begin at 10+1D4, lasting for 1D4+2 years. Boys begin at 11+1D4, lasting for 1D4+3 years.
Color | Terran(d20)^ | Praxian(d20) | Zent/Tyr* | Invid(d20)
-------------+--------------+--------------+-----------+------------
As Father | 1 - 4 | ------ | 1 - 5 | -----
As Mother | 5 - 8 | 1 - 8 | 6 - 10 | -----
Black | 9 - 11 | 9 - 11 | 11 - 14 | 1 - 4
Brown | 12 - 14 | 12 - 13 | 15 - 19 | 5
Red | 15 | 14 | 20 - 22 | 6 - 8
Blonde | 16 - 19 | 15 - 16 | 23 - 24 | 9 - 12
Silver/White | 20 @ | 17 | 25 | 13 - 14
Blue | ------ | 18 | 26 | 15 - 16
Purple | ------ | 19 | 27 - 28 | 17 - 18
Green | ------ | 20 | 29 - 30 | 19 - 20
Notes:
^ Pureblood Asians, Polynesians & Native Americans roll 1D12+1; African & Australian Aboriginals
roll 2D8-1. If a Terran/Terran interracial cross, note the origins of the parents.
If a person with mixed Other/Caucasian blood has a child with a Caucasian, Roll on the hair color
table as for a Caucasian, until one color is repeated ("as a parent" rolls count as that parent's color).
For mixed blood children (terran or Terran/other crossbreed), roll 1D6; 1-2 means to use the father's
racial table/dice, 3-6 means use the mother's.
@ If this roll comes up, reroll. If a second twenty is rolled, then this is the color the character is
born with. If another color rolled, then the character's hair starts out the second color, but starts
turning to silver or white at age 20+1D6, and will be completely turned in 5D6 months.
* For clones, roll 1D20+10; for Naturally born characters, roll 1D30. For Tiresian Clone
Triumvirates, the first clone is always a different shade than the other two. To determine the
other two clones hair color, roll 1D6 and consult the listing below:
1-2 : Same color family, but different shade;
3 : Shift one color to the left on the color line;
4 : shift two colors left;
5 : Shift one color right;
6 : shift two colors right.
The Color Line: Black, Brown, Red, Blonde+, Green, Blue, Purple, Black. For purposes of
shifting,
Silver/White is included in Blonde. Only Blondes can shift to Silver/White, and then only on a roll
of 1 or 2. A Triumvirate with the primary clone having Silver or White hair must choose a Blonde shade
on a roll of 1 or 2, with Red and Green considered one shift away. The two "Blacks" are the same color
for determining shifts from Black, but are considered bordering colors for shifting from Purple and
Brown (1 or 2 shifts left of Brown are both Black, as are 1 or 2 shifts right of Purple.
Dice Rolled
Color Families | Terran | Others | Shades Possible
---------------+--------+--------+-------------------------------------------------------
Black | 1D6 | 1D6 | 1-3: Glossy, 4-5: Dull, 6: Greyish
Brown | 1D8 | 1D8 | 1-2: Very Dark, 4-6: Brown, 7-8: Sandy/Light
Red | 1D6 | 1D8 | 1-2: Auburn (red-brown), 3-5: Red(red-orange),
| | | 6: Strawberry Blonde, 7: Pink, 8: Primary(True) Red
Blonde | 1D10 | 1D10 | 1-3: Blonde, 4-5: Golden Blonde, 6-7: Pale Blonde,
| | | 8-10: Sandy (much lighter version of Brown/7-8)
Silver/White | 1D6 | 1D8 | 1-3: Platinum, 4-5: White, 6-8: Silver
Blue | N.A. | 1D6 | 1-3: Pale, 4-5: Blue, 6: Dark
Purple | N.A. | 1D6 | 1-3: Lavender, 4-5: Purple, 6: Royal Purple (red-violet)
Green | N.A. | 1D6 | 1-2: Pale, 3-5: Green, 6: Dark
For example: Lynn-Minmei has blue-green eyes (they vary back and forth between blue and green during the series). She is Chinese, however, and occasionally green eyes appear in Chinese people, mainly from several infusions of Caucasian genes into the Chinese gene pool from the north and west (some evidence indicates the Mongols, were a Caucasian race until they conquered parts of China, taking home numerous Chinese brides for generations). However, considering the appearance of her parents, aunt, uncle and cousins, it is also likely that they have more Caucasian blood than normal. Perhaps before moving to Yokohama and Macross, the Lynn family was from Hong Kong or Canton; or could have a lay missionary (after all, the family IS Catholic) or even one of the Flying Tigers as an ancestor. As a guide to eye coloration, consult the following:
If one Parent has | and the other parent has | Roll these dice
------------------+--------------------------+------------------------
Brown Eyes | any other color of eyes | 1D20, +/- parents' mods.
Any non-brown | any non-brown eye color | 3D6+3, + parents' mods.
The Modifiers are = Brown: -4, Yellow: 0, Green: +2, Blue: +4, Violet: +6.
Dice Roll | Color Family | Dice | Color Variations
------------+--------------+------+------------------------------------------
-7 to +10 | Brown | 1D6 | 1-2: Dark Brown, 3-5 Brown, 6: Red-Brown
11 | Yellow | 1D6 | 1-3: Hazel, 4-6: Amber
12 to 16 | Green | 1D8 | 1-3: Blue-Green, 4-7: Green, 8: Pale Green
17 to 25 | Blue | 1D8 | 1-2: Dark Blue, 3-5: Blue,
| | | 6-7: Light Blue, 8: Pale Blue/Grey
26 and up | Violet | 1D6 | 1-4: Violet, 5-6: Pale Violet
Racial Notes:
Cloned Zentraedi roll 2D12+6 on this table.
Cloned Tiresians roll 2D10+8 on this table.
Praxians created via insemination use 2x mother's modifier.
Fifth Stage Invid roll 3D10-4, with results of -4 to +5 being red eyes. Even when eyes are not red, they
still have a reddish tint. Red eyes have a modifier of -6, and if two Stage Five Invid or a Human and
an Invid (optional) have a child, the child rolls 1D20, with rolls of -11 to -8 being red eyes.