Not your usually military post. Adoption

We are both active duty. Just recently my husband decided he wanted to separate, due to me being pregnant with my 3rd his 2nd. I agree it wasn’t ideal but he assured me in the beginning he would be there since it already hard with the baby. They will be a year apart. He stated he did not want anymore kids but this was a birth control failure. I am now 36 weeks moved to a brand new location and he hit me with this. I am so lost and I am considering adopting out this baby, I do not know the gender or have a name picked out and this made me think maybe it’s meant to be this way? I am considering this because I know how hard it is already with 2 kids let alone 3 with 2 under 2 while active duty and single. I do not have a support system here as I just got here and my family live hours away with their own lives. My husband has stated he will help but he gets 2 weekends a month. I’m supposed to care for these sweet babies the other 26 days alone when now I don’t even get a warm meal to eat. I’ve been in tears because all this is hitting at once and I want to make the best decision for me and my family. I do not want to leave active duty since I won’t have anything to fall back on for money or a job... I guess this is a vent / has anyone done adoption while ad?