Me and My Boyfriend had sex the 25th 29th of july and 4th 6th & 8th of august unprotected and he ejaculated. i went off birth control the 16th of July and had a regular period the following day for 5 days. I have been having tenderness in my lower abdomen and cramping. I am a couple of days late and thats not normal for me.. i am also extremely tired, increased appetite, horrible consistent headache, queasiness, and i normally have irregular bowls and constipation but now i have no problem. took a HPT on the 11th of august the and it came back negative. my family has a history of going months before they know they are pregnant. I think I am but the negative test has me worried