Confused

Haley
My boyfriend and I have been together for 2 years, overall 3 but strong for 2. We just recently found out we were pregnant. And both of us are happy. My 21st birthday is the 29th of June, so it was a little surprising. But I have worked with kids for 5 years, so I'm very excited. I just found out a couple days ago that, a couple months back .. my boyfriend cheated on me and had sex with another girl. I want to be so mad at him and just be done, but now a child is involved.. and I don't know what to do? I should obviously be mad, but I want to move on and hope it never happens again.. I need advice.