went in a hot tub..

Went in the hot tub with my husband about an hour ago. The temp was only at 94 and it felt like a luke warm bath. I was in it for maybe 20 minutes. I feel fine no cramping or bleeding but I also heard it's not really safe for pregnant women to go in hot tubs. I made sure the jets weren't on. I'm a ftm so I worry about everything. I'm almost 33 weeks. Am I just over reacting? 😩