I am 27 years old and my husband and I are trying to conceive. I have not had a period for the month of May (Negative pregnancy tests). I started having a dark brown discharge (lighter than a normal period - like really really light) on May 30th. We had sex on May 16th, 19th, 20th, 21st, 25th, 26th, 28th and 29th. Could I be pregnant or just a very light period (minus heavy cramping or ANY heavy blood.)