I had Unprotected Sex 2 weeks ago , today . My Partner Ejaculated inside and didn't pull out until he was done . I have Polycystic Ovarian Symdrome ( PCOS ) , so I have Itregular Periods and I'm UnSure of when to Test , since I can't go by a Missed Period . Lately I've had Back Pain , Cramps , HeadAches , Very Frequent Urination , Fatuige and Headaches . I've takes a Home Pregnancy Test 3 Times already and all hve come back Nagative . What should I do ? Is what I'm experiencing really Pregnancy ?!