I would suggest going to the doctor, If your feeling that lightheaded that you almost feinted, whether it is the small possibility that you are pregnant or it could be something else. Call your doctor and make an appt.
Today I had light blood pinkish and almost fainted while walkin and I was sittin down crampin light headed and all the other symptoms I sed before... So what's realy going on?
I would say it's too soon to tell if you were pregnant. You only had sex 8 days ago. You really can't check for pregnant until your next period is due...which is probably around June 11 or so.
With your period being the 12th of May, and with most women ovulating on the 14th day of their cycle, you would have only ovulated yesterday. Sperm can live up to 5-7 days in the right conditions. You also don't usually get any symptoms till after the baby implants and the hormones kick in. My best guess would be that you are not pg. The 20th is 6 days before you would have ovulated. But if by some chance you did then you would need to wait till about 12-14 days to test. Use a First Response Early Result. Another thing to consider is if you are worried about getting pregnant because you had unprotected sex then you mind can create the symptoms as well. Hope this is helpful.
Brandy