I had unprotected sex about 2 1/2 weeks ago and was told by a lady at planned parenthood to wait at least 3 weeks to test. I've been sleeping all day today because for some reason I've been exhausted. My boobs have been sore and my nipples have been itchy on and off. I've had a headache the last 4 days in a row and some sweet and salty foods have smelt overwhelming. Last night I had sex and it was kind of painful. Like an uncomfortable feeling I hadn't really felt before? Any thoughts?