We have been living together since October last year, and the first few months we had sex every single day, up to 3-5 times, and every single time I came inside her. We never protected ourselves (in the sense of next day pill, IUD, etc). In the first months, lets say until March this year, we hadn’t decided yet to have a baby, so from march to now we wanted to have a baby. We kept trying and she couldn’t get pregnant, until… something I didn’t mention before is that I was working from home. Well, I was recalled to work from the office for 2 months, so past 9 weeks I had to go out of the house from 6:30A.M to 6:30P.M Now she has all this time for herself, 12 HOURS. 9 weeks ago I started working from the office, and just 8 weeks ago she got pregnant, am I wrong in just thinking there’s a possibility the baby isn’t mine, having the knowledge that I came inside her every day up to 3-5 times for many months and she was never impregnated. You could argue that all those months I had lower sperm count, and I couldn’t until now. There’s one thing that keeps me thinking the baby isn’t mine, 3 months ago, my gf was going back to her parent’s house to well, visit them, I caught her the day before, chatting with an ex FWB asking him for a ride, and when I asked her who he was she said “just a random guy” I later that day found out he used to be a FWB and she was really sad about it and told me she would never text him again and that she legit only needed the transportation. I trust her since I was able to be certain she never texted him again since she doesn’t have a phone and has been using mine for last 4 or 5 months and I know she wouldn’t do something like this to me, but my mind, my mind keeps making me think this baby couldn’t be mine. Disclaimer: I was cucked on a previous relationship; and my current gf know about these fantasies and at one point when we were first knowing each other she said she would be happy to make my fantasy come true, but now she has gotten so deep in love she always denies the idea of cucking me, even though I tell her that if she wants to fuck anyone else she could just tell me and there would be no issue. She still doesn’t want to.