6. Don’t sit in a hot tub or sauna

Though relaxing, the high-heat environment of hot tubs, Jacuzzis, and saunas may be too dangerous for expecting mothers. In fact, research suggests that using one of these during your first trimester may double your risk of miscarriage. Soaking in hot water can raise body temperature and this causes problems with the baby including increasing the risk of birth defects. 7. Don’t drink a lot of caffeine Caffeine can travel through the placenta and increase your baby’s heart rate. Current research suggests that women can safely consume a cup or two of coffee each day, but forego downing a triple-shot latte while you’re carrying. 8. Don’t clean the cat’s litter box Pet your furry friend all you like and wash your hands afterward — but don’t clean a cat’s litter box. Feline waste is filled with millions of bacteria and parasites. One in particular,Toxoplasma gondiiTrusted Source, is particularly dangerous to expecting mothers.