Is a bumpy, red, ithcy rash on face a symptom of pregnancy?

I am expecting my period to come around the 7th of August. Usually by this time of the month, I can feel it coming...bloated, tired, sore and swollen breast. I haven't had any of that. I had unprotected sex 3 days after my last period, and according to all the research I've done, it would be VERY unlikely to get pregnant at that time. I'm having all sorts of symptoms that are more pregnancy-related than period-related. I'm very nauseous almost all the time (although not vomiting), light-headed frequently, and I've got a very noticeable bump high on the belly, just like where I carried my other 2 children. My question is not entirely about possibly being pregnant. Within the last 3 days I have developed a bumpy, red, ithcy rash all over my face. None of my daily habits, make-up, detergent...anything....has changed. Could this be a symptom of pregnancy also? Are my hormones out of whack, and if they are, could it cause this?