Generally basic facials and some device-based treatments can be tailored to be pregnancy-safe, so it's not a hard no across the board, but it really depends on the specific device and what it does. Someone in my mum group mentioned that treatments like dermaplaning are usually considered fine to continue, while things like strong electrical current devices or deep radio-frequency treatments are the ones most facialists will advise skipping during pregnancy. Honestly, I'd say go for gentler options and always tell your facialist upfront that you're pregnant, because a good one will adjust the treatment or swap out any iffy steps without you even having to ask. That said, since every pregnancy is different, it's really worth checking with your gynae or doctor first before booking anything, just to be sure.