Considering to deliver in NUH

Hi mummies, I’m planning to deliver in NUH (as I have staff benefits). However I noticed their antenatal package only includes 2 scans (at 20 and 32 weeks) as compared to private gynae who will do scans every consultation. Am thinking of visiting the private gynae near my place, but deliver in NUH. When is the latest I should book an appt with NUH to prepare for delivery? Has any mummies done sth like this too? Or should I stick to NUH throughout? Thank you! #adviceappreciated #firsttimemom