Period pains which are not coinciding near my periods .....what could this be a sign of?

They feel exactly approaching periods pains single milder, and occur around my waist and lower rear legs. They come about 4 or 5 times a daytime and the wierdest thing is I am not due on my period and its not even around the time I am due or have finished - its along with this time,,,, Is this normal/common?
Answers:

Why can't a girl use a tampon after an appendectomy?

If these pains are occurring in the middle of your cycle, then it is most possible due to the fact that you are ovulating. Cramping during this time is highly normal.

Is nearby something seriously wrong with me? Bleeding through the pill?

you might want to speak to your gyn and ask him about irritable bowl syndrome I have the same discomfort come to find out I had enodometriosis and I have to have surgery, when the cut me open out the IBS was cause by my intestine being higher than my ovary. just ask your gyn in the region of it he can diagnose you propperly i'm just trying to relief. if there is backache there is something wrong