I been taking two pills of Tylenol extra strength for about 3 days and yesterday i took teo plus a Ex pill for migrain, headaches and I think I'm suppose to have my period today but I still haven't gotten it or can I ge it later , did the pills have an affect on my period also I use to get it on the 19 regular but the last time I got it was on the 22 that's why I was expecting it today I'm really scare because the last time I had sexual intercourse was about 3-4 weeks ago but we used a condom , I just need help and advice I'm really scare