Low grade fever-help!?

Brandie • Mother of two and married to my favorite guy. Pregnant with baby #3!
Hey ladies! I don't normally worry too much about having a fever under 100, but being here in Denver, (our temps tend to run a bit lower due to altitude)and that I'm 8 weeks pregnant, I dont think I should ignore it.  Everything I've read always says a fever is serious in the first trimester. Can any of you give me a bit of insight? Have you had a fever? Was your dr concerned? 
I haven't even been in to see my midwife yet and I've switched to her so I don't even have rapport there as of yet. Help!?
I went to bed at 99. Woke up after a rough nights sleep at 99.6.