Im 7 days late for my period, ive been sleeping with my partner for a few times throughout the month, i had a misscarridge 4 months ago, and ive took pregnancy tests yet there all negative, im never really late i have a usual 29 day cycle and im getting really painful cramps like im coming on but ive had them for 8 days yet when i ususally come on i dont get pains maybe a few cramps the day before and thats it, any idea whats going on? lucy