I have noticeably blue veins on my chest, especially around the nipple area and there is actually some near my shoulders, which is quite unusual, but much more prominent than usual. Could this be a sign of pregnancy? I also have had a couple instances where I smell something real quick and feel awful, no vomiting though.I'm usually pretty exact with my periods each month- I have a 27 day cycle, and when I say pretty exact I mean even the time of the day I start my period is usually the same. I am due for my period today, I still haven't gotten it. I did have sex a few times around where I should ovulate, but with a condom. Could I be pregnant?