Hello house have been dating my girl now for close to 5 months now and at the early stages of our relationship I was having issues with her concerning a certain guy I was suspecting they had something going but each time I confront her she will tell me there's nothing going on between the both of them that they are just friends.. 
She's pregnant for me right now and just this morning she told me that she had something to tell me and that was when she spilled the beans that she and the guy in question dated temporary and they had sex twice when she was intoxicated with alcohol.... Am so confused right now I don't know if I should forgive her and move on or tell her to abort the babe and go my way...House please advice me on what to do ,I love her plenty