1/13 and 1/14 had unprotected sex, and period started that day but was a lot shorter and lighter then normal. 1/20 was spotting for 2 days. Took an HPT 1/24 (yesterday) that was negative, but not sure if that was too soon to test. Should I wait and take another test? Or is there no way im pregnant? I'm 20, just started night classes on top of a full time job. My husband and I want a baby, I'm just trying to figure out what I should do. Any help would be appreciated. Thanks.