Heat- how safe?

Hello everyone, I wasn't really sure where to ask this so I figured maybe someone had some insight here.

I work in a shop with no A.C, or heat but that's irrelevant right now, and it gets HOT. It's currently 92°, with a real feel of 107° and absolutely no wind. It's over 107 in the shop easily.

My question is, how unsafe is this for my pregnancy? I make sure to drink PLENTY of water (over 150 oz while here yesterday), and stand by a fan when I get a chance, but its sweat from the time I get here until I leave.

Is there any higher risk of anything bc of the excessive heat? Am I drinking enough/too much water?

Any info would be beneficial and greatly appreciated. Thanks!