My periods have always been irregular meaning i could have one every 2 weeks and i have been like this for a while. Going on how they have been i am now 7 days late. I am experiencing really sore breasts and feel like im carrying 2 huge bolders around i always have been haveing stomach cramps, tiredness and sickness as well as a few oher symptoms. I havent done a test yet just but i am just wondering if there could be any other reason for this apart from pregnancy??