I have a concern on the possibility of being pregnant. Last month my cycle was 5 days late then I had about a 3 day period with no clots, no shedding. It started light then it had a medium flow. Usually my periods last between 4-5 days. Every month my cycle date will start 3-5 days earlier than the previous month date. (irregular) So before this my last normal period was 11-12-11. I've taken 2 hpt that both says negative. I have all the early symptoms. (Hot flashes, nausea, nosebleeds, headaches, cravings, etc.) I'm 28 yrs old with a 2 yr old and have experienced an ectopic in 2010. What do you suggest?