Seeking advice on how subsidised obstetrician works in NUH please

I’m at the subsidised gynae clinic at NUH for my pregnancy, and I’m deemed a high-risk patient so I am followed up by the high-risk doctors team. However, I heard that these doctors may not be the one presiding at the birth of the baby, I’ll get whoever is on duty that day, might be a house officer or etc. seeking help from mums with this previous experience please. Can anyone let me know if it’s really the case that the delivery is by the random duty doctor that day? Even if it’s a high-risk situation. As the thought is making me a bit nervous haha. Thank you! #pleasehelp #FTM