Cramping during orgasm?

Anyone ever had this as an early pregnancy symptom?

Some cramping on right side the past 2 days. And today (10dpo)we BDed and during my orgasms the cramping got REALLY strong. This has never happened before to me. Read this is some other forums as a possible early symptom.

(Recently had a pelvic ultrasound and no endometriosis or anything abnormal)