Conception Probability

Probability is calculated on the ovum rather than the individual; meaning that an individual may potentially be a surrogate mother of a different species, the compatibility is calculated against the ovum to host and the ovum to breeder combined.

The maximum compatible probability is 100%; there are currently no boosters. The order in which probability is calculated and how is as follows, and stacks with each layer: (i.e. calculation for each of the numbered items below (except #4) if the values were 50%, 90%, 150% respectively; the total compatible probability of conception would be the base of 100% multiplied by 50% * 90% * 150% = 67.5% total probability)

Ovum source that is not from the same individual currently hosting the ovum, probability is calculated against the compatibility between species of the ovum and the host; if the species are the same, there would be no variation.

(Includes a partnered compatibility boost and any permanently forced and transiently forced compatibility at the time the ovum was generated)

Ovum species is calculated against the individual species that is breeding.

(Includes a partnered compatibility boost and any permanently forced and transiently forced compatibility at the time the ovum was generated)

Sum of essence transferred by the breeder over a 5 day period is divided by the total amount of essence the uterus is holding and by the amount that particular species uterus expects (different species have smaller/larger uteruses).

(This is the only compatibility calculation which allows a boost up to 200% to offset the previously calculated value; meaning more essence transferred, greater the probability)

Your Total Essence	Uterus Total Essence	Uterus Expect Essence	Efficacy Percent	Conception Probability
15 ML	15 ML	30 ML	100 %	50 %
15 ML	20 ML	30 ML	75 %	38 %
45 ML	45 ML	30 ML	100 %	150 %
45 ML	60 ML	30 ML	75 %	113 %

If probability is great enough for conception, the same probability value is checked against any potential hybrids that may be conceived between the two species (ovum and breeder); otherwise, the species will remain that of the ovum source species.