Doppler at every visit??

Megan

Ok I have a question I'm currently 20 +2 and I'm high risk do to past health issues and a VP shunt. I had my anatomy scan last week and little girl looks perfect but I had my check up today and she didn't check the heartbeat. Is it normal not to hear it at every visit or was it odd not to hear it? Also were trying to decide whether I can deliver naturally with a VP shunt due to pressure in my brain when bearing down...does anyone have experience...? Sorry first time mom here.

Thanks guys