Hello all I really hope someone can help me. I had sex around 13 or 24 of september and the following week had a period or what I thought was a period. it lasted my normal length 5 days it was just unusually light compared to normal. I then had sex on the 27 of september a week after that I started to have the symptoms nauseous feeling all times of day, vomiting, sensitivity to smells, irritability, emotional at times, headache s (not uncommon to me but they are more frequently), neck and backaches, feet hurt, boobs look bigger or fuller, extremely tired always, dizzy at times, forgetful especially when I talking. I took four pregnancy test and they have all been negative. I have also had a blood test done which I was told was negative. I know body and something is going on. Has anyone heard of a b lood test being negative and they were actually pregnant. Any help is appreciated. Thank you