Feel so ashamed

So me and my child’s father are not currently together we broke up a couple months ago but recently we have been working on trying to rebuild that was his word and I was OK with that because things have been better. I will admit I should have got more clarity about the situation before I went all in because I’ve been staying at his place for like two weeks haven’t even been home we do every single thing together I’ve basically take care of the house like we’re together and that’s where I messed up. I do take responsibility for the situation well my part in it. Anyways yesterday we find out that I’m pregnant again. Now we knew what we were doing and he has always said if it happens it happens. So now he’s gone back on that hundred percent and he wants an abortion and I’m in so much shock right now because I actually thought everything would be OK. I cannot take care of two children by myself and I am in barest and ashamed to say that I’m in my 30s I should be able to do anything I put my mind to but now I’m lost confused sad I’ve missed a week of work being sick I don’t know what to do