Me and my dp had been trying since January for a baby. I found out two weeks he had been cheating on me with a close friend and now i haven't came on. Ive had irregular cycles over the past seven month, the longest 41 but now im on day 45. These past few days ive had dark browny blood ive took a test and its negative. Am i pregnant? I need to know ASAP cos i may have a termination.