I woke up this morning to some mild cramps, at first I thought I had to use the restroom. It went away but came back later on. The cramps are in pelvis area and slightly in lower back. The cramps come back throughout the day today in intervals. My ovulation from here said it ended the 2nd of August (3 day's ago) and my period supposed to start in 9 days. I've never experienced cramps before my period (the early) and I am unsure what it is.