Pain in the mid-cycle is often ovulation pain (mittelschmerz) â very common and harmless. The pre-period occurrence suggests possible endometriosis or a small ovarian cyst. Get a pelvic ultrasound done to rule out cysts or endometrioma. If USG is normal, it's likely hormonal ovulation pain which doesn't need treatment.
Next Steps
Consult me on Practo with your USG report for proper evaluation.