Hi. I'm late on my period for nearly two weeks I had sex on th 31st of October which is when my period is due.. I am currently under some stress but because I had sex just before my period I have not come on as of yet! Does this mean I could be pregnant. My boobs are sore but they get like that when I'm due on. I'm constantly eating. I'm not having period pains but I am having sharp tingly pains all round my stomach. Can someone please help me???!