Maybe he came in me?

My last AF was September 6-10. According to my flo app im a week late. But its almost 2 weeks. We had sex during my ovulation window. During sex he came twice (pull out method) But the first time before he came halfway through i felt something warm, the same feeling when he cums inside me. But he came after that. I thought he came inside me but i didn’t say anything because he came again so I just assumed he didn’t. And then we went again but that was almost an hour later. But now that I’m late im second guessing that. When I was due for my AF I had pms like symptoms but then they went away. And now there’s been no sign, except i been having these weird cramps in my lower abdomen and vagina. They dont hurt necessarily they just feel achey in a way. Some nausea but nothing consistent. Could he have started to cum then stopped? I’ve just never felt a warm sensation like that outside of being finished in. I literally don’t know what else that could of been. But idk. I could just be paranoid because of how late i am.