I am taking 50 mg days 5-9. currently on cd 17. got my first positive opk on cd 16. have been having periodic cramping since i started clomid but the last two days have had lotsa cramps progressively getting worse. today i can barely sit up!! also lotsa back pain, bloating. i am assuming this is o, but i have not had any follicle tracking. only gettting cd 21 bloods. should i be worried about overstim or is this much cramps normal?? i havent o'd in like 10 years and this is my first cycle of clomid.