Pregnancy Symptoms

I had my gallbladder removed 01/10/20 but I BD on 01/09/20 my ovulation date was supposed to be 01/10/20 I’ve been having cramps since last week they just started to get really bad 2 days ago I’m due for AF in 2 days. I’m usually dry right before cycle is due but I’ve been having slimy discharge last Friday I had this really yellow snot mucus come from my vagina (TMI) I don’t know what to think. I’ve taking 2 pregnancy test but both were negative I don’t want to get my hopes up but can anyway please tell me if they have experienced these symptoms