TTC in the Military

So my hubby and I have been TTC for a year and I'm a little worried. We're both military, but he's getting out in a year. If I conceive, he'll be a stay at home dad because I still have 4 years left on my contract. For the Marines, females get 60 days after birth to spend with their child and then it's back to work. Also, we have 6 months to get back down to our weight group. In the chance that I do get a BFP soon, does anyone have any stories about the weight gain/loss after birth? Any other military women who have given birth on here?