Hi Tamar21, does this happen every month? I would get it checked out, it could be just a bad month. It could be something more serious if it happens a lot. I would make an appointment and tell the gyn the problem, they can do an exam and run some tests to figure out what the issue may be.
You need to consult your physician or better yet your GYN Specialist about this especially if this is happening all the time.
You can also try using a warm heating pad across your lower abdomen.