Since you've already made some grave mistakes here (dating a 20 y.o., getting her pregnant) all you can really do is wait for her brain to develop fully and hope that as a truly grown adult she understands that kids do better when their parents are together. Unfortunately you can't rewind the clock and choose a more appropriate partner nor take more rational means in terms of birth control.
For a 22 year old she is very very mature so I don't think it's a case of that I'm afraid she's just doesn't trust me anymore with me letting her down.
DplusLplusKplusM t1_jef4nxy wrote
Since you've already made some grave mistakes here (dating a 20 y.o., getting her pregnant) all you can really do is wait for her brain to develop fully and hope that as a truly grown adult she understands that kids do better when their parents are together. Unfortunately you can't rewind the clock and choose a more appropriate partner nor take more rational means in terms of birth control.