I am currently 3 weeks late. My last period was June 7 which was about 4-5 days early. I had sex on the 23rd of June and a day or so later experienced light spotting for a day or so and then it stopped. My period NEVER came. I have experienced sharp shooting pains in my lower back and that was the result of me getting up too fast. It went away. I find myself cramping if I engage in too much physical activity but as soon as I rest, it goes away. I haven't had any sore breasts (seem to be getting bigger though), but have experienced some nausea, dizziness, and tiredness which tends to come and go. I did take 3 pregnancy tests which all came back negative. I scheduled a doctor's appointment the 1st week of August, just in case my period do come. We will see.