Hi!!Need not worry.The abdominal pain
that you are getting may be from menstrual cramps
or it may indicate a problem in a reproductive organ(uterus,ovary etc).As of now try these home remedies
to avoid prescription medications:
Apply a heating pad to your lower belly area, below your belly button but never fall asleep with the heating pad on.
Do light circular massage with your fingertips around your lower belly area.
Drink warm beverages,eat light but frequent meals.
Follow a diet rich in complex carbohydrates such as whole grains, fruits, and vegetables, but low in salt, sugar, alcohol, and caffeine.
Keep your legs raised while lying down, or lie on your side with your knees bent.
Practice relaxation techniques
such as meditation or yoga.
Try over-the-counter anti-inflammatory medicine, such as ibuprofen. Start taking it the day before your period is expected to start, and continue taking it regularly for the first few days of your period.
Try vitamin B6, calcium, and magnesium supplements, especially if your pain is from PMS.
Take warm showers or baths.
Walk or exercise regularly, including pelvic rocking exercises.
Lose weight if you are overweight. Get regular, aerobic exercise
You will be fine if you follow the above recommendations.
Even if the tenderness persists after your periods are over ,then its likely that you are suffering form acute appendicitis
or pelvic inflammatory disease
.It is then suggested that you approach your family physician.