I don’t even know what to do...

I did not want this pregnancy..I already have a baby, she will be 1 April 27th... I’m on birth control... I’m not even in a committed relationship.. it was literally one time.. this stuff only happens in the movies, why is it happening to me? I don’t even know what to do..the guy and I are friends, who hook up every now and then, but he knows I don’t want to be in a relationship with anyone.. I know he’s going to want to keep this thing and I don’t know if I want to.. I HATED being pregnant with my daughter.. please no negativity.. I’m on birth control..it’s not like I just hoped I would be okay.