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my wife was pregnant last winter and could not enjoy the tub. In her last trimester we dropped the temp and she sat in the cool down seats. We were with a specialist because she was high risk, and he told us that first two trimesters is a terrible time for baby and hot temps. I would wait, I know it sucks, but in the long run it is really for the better good. Short term pain for a long term gain.
the baby is so cute term, I would agree, no need for concerns
dont worry about the warnings, these two guys are biological twins. Their parents got thier first hot tub when mom was 1 1/2 months pregnant.