What’s going on with my body? I’m freaking out!

My period is 11 days late this month. According to glow I was supposed to start on Nov. 1st. Last month my period came on the 2nd. My flow was regular for its 7 day course. I started spotting on the 10th and I passed some clots on the 15th & 16th. I finally stopped spotting on the 19th. I’ve taken 2 pregnancy test this month & it was a BFN. I just don’t know what’s going on with me. My body is tryna tell me something!