So I've been peeing like a mad woman! I hardly drink anything and I've been going every twenty minutes or so! Idk when I ovulated, my cycle changes all the time but my husband and I had sex aug 28, sept 3 & 4...last night I could hardly sleep my lower back was hurting and my lower abdomen cramping, now I've got a huge headache and still cramping like period cramps is what it feels like mostly on my left side, my boobs are tender. AF is due around sept 18 it changes last month it was 3 days late another time it was early..