I have pcos (polycystic ovary syndrome) but have been on medication to make them regular. Af was due on christmas day but didnt show. It showed up today but i am not as i have been having lower back pain a lot and i havee been having cramps in the lower abdomen area. Today i had a couple of small clots and like watery blood dischargd. Has this happen to anyone and could i still be pregnant as i have been throwing up and feeling sick all day