fever

I'm going on day 5 with fever. I'm 11w4d. It hasn't gotten above 100. I called the Dr on Tuesday and again yesterday and they said it's probably a virus and as long as my fever stays under 103 the baby is ok. I have an ultra sound apt next week and they said just wait and come in then. This my first; my rainbow baby and I'm probably just overly paranoid. Anyone have any experience that might ease my mind. I'm taking Tylenol when it gets to 100 but I even hate having to take that every day.