I have a fever, how long before I'm not contagious?

My sister is due 6/8 and I want to be in the delivery room with her. Today I woke up feeling nauseous and when I got home, I took my temperature. It's 101.5. I know fevers can be a sign of being contagious, so obviously I wouldn't visit her and the baby right now. But how long do I need to wait after my fever goe away before I can visit?

Also, if it changes anything, she is not vaccinating.