My instruction/owner's manuals from LELO caution against using a vibrator during pregnancy. I would think that outside stimulation of the clitoris and labia would be fine, but internal vibration of the vaginal canal would definitely impact the fetus
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My instruction/owner's manuals from LELO caution against using a vibrator during pregnancy. I would think that outside stimulation of the clitoris and labia would be fine, but internal vibration of the vaginal canal would definitely impact the fetus since the vibrations carry through tissue. For example, when using a vibrator vaginally, a partner can feel the vibrations when penetrating anally (and vice versa: when using a vibrator anally, the partner can feel the vibrations when penetrating vaginally).
Vibrations could possibly impact or disrupt the neurological development of the fetus and there is a remote (but possible) chance that it trigger early labor. Like choosing to chance a sip of wine during pregnancy, I would chalk this up to be something one should approach with caution. I see nothing wrong with using a non-vibrating dildo for gentle thrusting, however. Just don't thrust vigorously enough to bump the cervix.