I'm 11dpo today and at 5 am I woke up with major cramping. Almost like labor pains, they came in waves. They were so painful i could hardly breath. I thought for sure af was on way. They lasted for about an hour, then nothing. Cramps stopped and no af today! I just checked my cm before my shower and it was clear stretchy mucus with a tiny bit of light brown streaks. Sorry tmi....any ideas? Af is due on the 31st.....