The placenta would run out of nutrients and the hospital would induce. There has been cases where the fetus falls asleep in the womb though, one case in the UK and one in the US that I read about, and the one in the UK lasted for 13 months. She fell asleep at 4 months and stopped development and then just woke up and continued.
31 days. and they can get pregnant again immeadiately after.
3 days.
266 days.
1 day = 24 hours 305 hours = 305 / 24 days = 12 days 17 hours ~= 12.71 days.
Pregnancy in ferrets lasts 38-42 days or 6 weeks
depends how many days after your last period and when you had sex last.
It varies from 95 to 160 days.
28 to 32 days
The gestation period of the lion is about 110 days.
2-3 days
A dog may be pregnant 58-62 days.
A normal pregnancy can last from 245 to 270 days from conception to delivery, the average being 266 days. If you are counting from the last period add 14 days to these numbers.