Who’s at fault more

Long story but I need the truth I’m 26 weeks my ex and I were living together at the time and I decided to get on bc we both agreed to wait on kids we both have 5 year old boys from different ppl long story short I found out I was preg he stuck around for one month before moving out I’ve seen him about three times this entire pregnancy he hasn’t been to any apts dosent check on us or help me out he he feels I’m wrong and trapped him bcus I wasnt taking my pills correctly I’ve apologized and I do feel bad but for us to be dating on and off for fours years and him to leave us like this I dnt think I can ever forgive or forget it He claims he’s going to be here for the baby come April but being a father and supportive starts before that ive been so depressed about it I’ve never felt so low in my life