He want another baby but I don't

Hey guys. I think my husband is trying to get another baby. Here's why. We have a 10 month old baby boy but lately he's been talking about having a little girl too because he just love being s new daddy. I told him let's wait til our son is out of diapers. He was like why. We can just get them out the way and he really want another. So i explained that I don't because I love our son and want to enjoy him. So last night, we had sex and he was like "let's make a baby". I stopped him and like no. So he dicked whipped me aka hitting it good making me say yes and he nutted in me. When it happened, I jumped off him so quick and rushed to go pee. He was like "I want a baby". I'm so pissed. Because he knows when I ovulate and I'm fertile this week from the glow app. So now it's possible that a baby is starting to form inside of me. I'm not happy about it.