Okay so i was 16 days late on my period...became extremly constipated then regulated... finally i had a 4 day period (like normal) it ended so had sex next day. 2 days later i started spotting which lasted 2 days. Light watery pink only when i wiped. It stopped then 2 days later got nauseous then diarrhea. Whats going on with my body. I dont feel sick. Nothing is different..? Help?!