Me and my girlfriend always using a condom during sex. She had a 29-days cycle. We had sex during her 4th, 7th, 10th, 11th, 15th, 17th, and yesterday which is her 20th. I used condoms during those days and after every sex, I checked them if it has holes or something. No holes and something on the condoms. Today she felt like she has nausea and a headache and cramps. Are these PMS symptoms?