Hi, I normally get regular periods (usually 26 days) that only vary depending on how much exercise I do. My period was due last Tuesday (28th July, so it's a week and a day late) but there has been nothing aside from occasional discharge. I'm not bloated, my breasts are slightly swollen (I think), but for the most part not tender or tingly, I keep feeling like I'm on my period, i.e. I feel quite heavy around my lower abdomen, and have very little back pain.I keep looking around online for signs of a pregnancy, but I don't seem to really fit into any of them. I had a really awful headache and was shaky for a day without nausea. I don't really want to take a test until next week when it reaches 2 weeks since the possible conception date, and I'm really scared about a false negative. Has anyone else had a similar experience? Could I be pregnant, or is my period just late? Could it be some other health concern? Thanks in advance