I had intercourse march 4th. I had slight bleeding on the 13 to 15.It was not a normal period and the bleeding came 5 days before my actual period.Recently I have been very dizzy for the past 4 days,and have had headaches almost everyday.Now the dizziness has wore off.I also have been getting very hot to the face.My BBT is around 98.7 and my usual temp is 96.0.Took a pregnancy test last friday and it said negative.