Methotrexate after ectopic pregnancy

Okay so the end of last year I had an ectopic pregnancy and was given two shots of methotrexate, I’ve had periods and my hcg levels have been down for months. Now after given those shots I’ve had a hard time reaching an orgasm even after hours of for-play and intercourse. It’s to the point where my partner and I have given up if I don’t cum within an hour. Is it possible the methotrexate caused me to not be able to cum.