Hello , ok so im 22yrs old ive been having unprotected sex for 6 years never gotten pregnant i was in a relationship for 4 years and never got pregnant my ex's mother told me when he was a baby he had a surgery and Dr's told her when he got older he would have to have a sperm count etc. so i always figured thats why i wouldnt get pregnant. well we broke up and a year later i met someone, we now live together and have been having unprotected sex for over a year i still have not gotten pregnant ive missed my period at times and ive took several pregnancy test and nothing. I used to be very irregular but for the past year ive been right on time. But for this cycle im late about 1 week i keep thinking im gonna get it because ive been having cramping on my lower back, and abdomen like i usually do and breast tenderness like i usually do before my period the cramping usually happen's the day of though and its been going on for about 3-4 days already ive also been super tired i cant keep my eyes open at times ive been getting enough sleep and all , im super scared to take a pregnancy test to be super disappointed once again! Could i be pregnant or could it be something else HELP please