Thanks for the query.
You didn't mention your last menstrual period.
If you are nearing your periods, then this pain could be pain during menstruation
If you are near ovulatory period, then this could be ovulatory pain.
If there is possibility of pregnancy
then the possibility of ectopic pregnancy should be ruled out.
It can also be pain due to gastrointestinal causes.
So, you better once consult gynecologist and get examined to find out the actual cause and take treatment accordingly.