Going to a state fair while pregnant

Okay, first off I want to say that I'm not pregnant yet. I'm currently on cycle 2 of letrozole. My husband and I have been wanting to go to the state fair for years but haven't had the time. We really want to go this year, and if I get pregnant in the next few rounds I will be 6 months or less pregnant. Is it safe to walk around a fair for several hours in the summer? I seem to be finding mixed answers online. I know to stay out of the sun and drink plenty of water but even then, could it be dangerous or am I over thinking?