Ok, you came to the right place. lol
When I got pregnant with my first I was 19 and just got my first place. We where living on cup a noodle, and I didn't even think I could feed myself enough to have a healthy baby, (she was a beautiful 9 pound girl) We lived with a little assistances from the government, it was the WIC program.
with my second I had just left my boyfriend moved 12 hours away to Oregon and found out he left me with a surprise. lol I was in a place I had never been, I knew no one and I ended up having to come back to California broke as could be and live with my dad.
I was out of his place in 6 months and was able to go back to school and live off finical aid while she was in the college day care that was paid for by the state.
My suggestion to you is if you have set down and you know it wont work, and you also don't want you child in day care 40 hours a week, then you should work 3 days a week, 2 of them being his days off so he can watch the baby and then one day in a day care setting.
My second suggestion is something I had to do with my first which was baby sit a few other kids so you can stay in your home and still help out with the bills.
And my last which i do not suggest becuase it becomes hard to stay a happy couple when you never see each other but should still be considered is working days and him nights or vice versa.