COULD I BE?

I had unprotected sex feb. 10, 2011
my last period started on feb. 17, 2011

Could I have convceived then, but still had a period? (I don't remember if it was ligt, but diffenitely not heavy)
My periods usually come 3 days before the date of my last one...but it still haven't came and I took a pregnancy test and it's reading negative.....Or maybe I was too stressed last week and delayed my period?!

[Elaine Brown, MD]

Hi!
You are probably "OK".  Anytime there is irregular bleeding, I recommend taking a test though.  I usually recommend testing every 3-7 days until the period comes, or the test is positive, whichever comes first.  If conception was that long ago a blood test would be definitive by now. (A urine test probably would be too.)
Good luck!
Dr B