As a (almost qualified - in 5 weeks) massage therapist i would say no actually. If the person isn't qualified in actual pregnancy massage, it should be avoided. There are induction points in your shoulders which typically a neck and shoulder massage focus around. If they can do like a scalp, face & hand massage instead take that, but otherwise i would say no, and go and get one done by somebody trained in pregnancy massage.

Your choice completely, just saying what my experience is telling me.