I am 21 years old and married. I had about a month ago unprotection sex. I use to be on the pill, but stoped it like 2 or 3 months ago. I always get my period the first week in the month and I had it last in July (first week in July) It is now almost September and I still have not got it. My stomch is swolden and I am constiped. I feel tired. I also get Headache 's now and then. I did a test about two weeks ago and it was neg. I saw a doctor and the doctor was not very worried, but I am very. Could I be or not? Can someone help me!