Hello, im female age 33, my query relates to the fact that in the early hours of this morning I experienced severe lower abdominal pain/cramps which were continuous with no break for a couple of hours and then have experienced lighter cramps (similar to period pains) and lower back ache all day today, however my period is not due for another week to 10 days at least. I do not normally suffer from bad pmt. I do know that I was ovulating last weekend around a week ago but my husband and I are using protection as we are not trying for another baby just yet, therefore am quite concerned at the severe cramps and the reason why. Many thanks for any advice that can be offered.