Last month my period started on Feb. 14th and lasted until around the 21st. That coming weekend (Sat. 25) my boyfriend and I had unprotected sex, but only for like 30 seconds. He did not cum at all during this time and pre-cum wasn t present either to my knowledge. A couple weeks later, Mar. 9-11 I suffered from food poisoning throwing up every 15 mins for the first day. I was supposed to start my period 2 days ago and haven t. I plan to take a pregnancy test today, but was wondering if not only stress about the situation but the food poisoning could be delaying it? Your thoughts would be much appreciated. Thank you!