I regret my decision and hate myself

So three months ago I got an abortion my boyfriend broke up and were going through a lot and it didn't seem right to have a baby In that environment. Now my boyfriend and I are back together and everything is good , but I still have the guilt weighing on me. I can't even look at a baby without thinking about what I did . Idk it's really been putting me in a depression and I don't know how to get out of it