 [ Symptoms ] what are the symptoms of cataracts [ Disease ] paranoid    the feeling that someone or something is out to get you    may not be the correct term feeling worried or anxious after your first sexual encounter would be considered normal anxiety has been known to change your menstrual cycle but i have no idea if your mood is the true underlying reason you did use a condom so you are to be commended for this preventative measure condoms are effective contraceptives if you used it correctly and did not have any vaginalpenile contact prior to using it if you are worried then take a pregnancy test in a few weeks and if you plan on future sexual activity you may want to consider a more effective secondary birth control method like the pill in addition to your condom use