Sorry mods, this site doesn't always agree with my phone
yes 1.2 will be fine. They will look like they ate a soft ball the week they are due. They are prego for 28 days. Don't leave the male in, he will kill the babies so he can breed the female again. I think it's a montht that they nurse, i don't keep track. Oh and give the female a 2 week break once the babies are weaned, then you can breed her again.