Okay so, I had unprotected sex in the middle of April, around the 14th, then I got my period around a week or a little less later, and my period was shorter than normal. I noticed that I was having trouble breathing, almost gasping. A feeling like I didnt have enough air in my lungs, also I had INCREDIBLY sore breasts, couldnt even sleep on my stomach. Breasts have gotten bigger, some feeling of being lightheaded at times, my body temperature has been higher I'm always hot,had all the symptoms of getting my period when I was supposed to get it but bever did. didnt reall think anything of these signs until I woke up feeling sick and puked when I woke up. (hadnt eaten anything out of the ordinary) I was very alarmed by this because I NEVER throw up and began to put all this together wondering if I could be pregnant. I eventually got my period ten days late, had cramps, lighter than normal. I took a pregnancy test but it came out negative and I still have these symptoms. Not sure what to think of this but any advice would help!