Pregnancy!

Hi y’all! My husband and I have been trying to get pregnant for a while now and every month my period is always right on time if not earlier! This month I am already 3 days late. What do i do? Take a test or is it too early to tell? I’ve read different things and not sure what is the right thing to do. I have also had some nausea here and there after or while I’m eating something. I’ve been nervous to take a test and be disappointed. Some insight please! Thanks for your help!!