Advice please!!!

If you loved your girlfriend and you were serious, why did you cheat on her? Quite honestly, I think you deserve every bit of drama and stress you just put yourself through, but your girlfriend does not. You might be able to make it work, but it's not fair to her because there will always be another woman in your life because you had a child with her. And it's insulting because I'm assuming you haven't had one with her. Especially if it's your first. She'd be better off leaving you, if only for her own mental comfort. And do you even know if the girl you cheated with had an STD? You could have given her something.

I think you need to be honest with your girlfriend and tell her what happened.I dont know its up to your girlfriend to still accept you as her man.Also be a father to your child and take care of your responsibility.GOOD luck.