I had unprotected sex on the 2nd August and I have been having very suspicious symptoms. I have felt slightly nauseous and extremely tired and this last week I have had quite bad lower back ache and my lower abdomen has been aching.. like period pain but sometimes worse. My period was due on the 15th or today and have about a 32 or 33 day cycle. This morning I had a little pink spotting when I wiped but a pregnancy test was negative and spotting is now gone. Im panicking a bit, although another baby might be nice as ive only got one child. I have always said I would never have another baby because my son was born 12 weeks premature and ive never been so scared.. sorry for going on but ive got nobody to talk to and im driving myself mad wondering what if I am.. I dont want to get my hopes up though because the test this morning was negative.