i had sex on jan 19 and i figured everything was fine i was getting normal pms symptoms but then there was no period. so i went and got a test that was negative and i have been feeling like i was going to start my period but nothing is coming out. i feel nauseous sometimes and have mild cramps that don’t stay for long. i am just a little bit concerned because i know condoms aren’t 100% protective but the condom didn’t break. i think it’s also important to mention my periods sometimes vary like last month i was 4 days late so idk