Hey ladies I need some help

So I was trying to have some fun😜😜😜 with my boo today but something weird happened. I’ve been talking my bc everyday around or at the exact same time. So the weird thing that happened was that it kinda felt like he was hitting something in my ut and it hurt a lil and just felt very weird. My period starts soon so maybe that could be it but I am a little bit worried that something might be going on. Has this ever happened to you please let me know in the comments!?