Help me!? Advice ladies!

I’ll attach my calendar. I’m not trying but we’re not preventing either. Just playing it however it go. I’m very late and I’ve been have severe cramps the last two or three days without and period coming. It’s severe pain usually more towards the right side. Advice on what it could be? I know what my pms symptoms are and this is not it. I’ve also been having lots and lots of watery cm which has been making think maybe I started my period but haven’t. I’ve taken three tests and BFN. Help!?