Hello, on September 4th my girlfriend and I had sex. I wore protection but we didn't really have full sex. I didn't ejaculate or anything . Nor did the condom bust/break. For the past two months (October & November) she has had her regular menstrual cycles, but she hasn't had one for December and its going into January now. I don't know what's going on. This situation happened last year so I'm not exactly terrified, but I'm still concern if she's pregnant or if something is off in her body.. Can I get some feedback please!!! ASAP