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!