Don’t know what to do

At this point of my life I truly don’t know what to do.

I’m a single mother of two (6yrs and 2 yrs old). Me and their dad we are in good terms, most of the time. We have occasional sex. I think it was a win-win since I barely have time to go out and meet people since I’m going to school (trying to get my Bachelors) and work full time. Anyways I recently found out I’m pregnant.but hear me out I’m on birth control, the IUD. So like WTF. I heard before of women getting pregnant but never thought I would’ve been one of those 3%. I still have a whole year left to finish school. I just keep asking why me??? Why I’m at my peak season pretty much. And now this. I have an appointment for abortion for the 7th, I truly don’t want to do it. The father is pushing me to , and I mean it makes sense I have so much on my plate right now. Doing this will hunt me down for the rest of my life.

In need of some advice ladies thanks.