My period was due on the 22nd of June. We have sort of tried on and off. I am not usually late but if i am i can still tell my period is due. This time feels different in some way. I have what can only be described as a butterfly stomach, with the odd tiny cramp. The week before my period was due i had a very strange time. I could not stay awake, i came home from work and just fell into a deep sleep and could not be woken. This went on for over a week, i have now done pregnancy tests but they are negative. I am confused, my breasts have become noticeably larger to everyone, and comments have been made. I don't want to go to the doctor and lokk silly and keep thinking well my period will start tomorrow. The tests say no what are the chances?