Okay
I had sex on the 3rd of aug. & the 7th.. My last NORMAL PERIOD was the 20th of July..
But this month period was on the 17th & much lighter then a my normal periods.. And the 3rd was around the time I should have been ovulating... So I'm not to sure if I'm pregnant or not..
I been more tired during the day because I can't sleep at night.. Then I been having cravings for ice cream a lot! Then I have back pain.. I always had it because I played football one day and hurt it but this is the lower back pain... Last night I had a feeling like I had to throw up I did alil but not so much but the throwing up just started on the 24th of aug & when ever I stand up I get dizzy or black spots block my view so I can not see.. Plus my boyfriend said I've been in weird moods for past couple of days...
So what should I do... Please HELP ME !

You should take a pregnancy test... no one online can tell you whether you're pregnant. Our guess is as good as yours. Only a test will be able to tell you.