Is it a fever or am I just overreacting?

Tiffany
Ftm here and currently my 3 month old daughter is feeling a little warm. I took her temperature at 9:00pm and it was 101.1 and I took it again at 9:33pm and it was 100.4. My fiance said it's probably just a light cold but I'm still worried. She's acting normal but her body is just warm. Is it a fever or no?