Hospital Insurance

Of course you can give birth in hospital. You just can't have a private room, and you'll have to choose a public hospital.

If you're unlucky, you'll be in the same room as someone else who hasn't got this top-up insurance either. It's not a big deal - the quality of care and the staff are the same.

Check Mutualité Chrétienne, I believe they have no waiting period for certain benefits (or at least a shorter one than others).

You maybe covered if you were previously under a health insurance where you lived before and by international agreements.
I certainly gave birth within a year of arriving found out the month we arrived and the mutelle paid.
Contact the mutelle and your previous country for advice. If the UK for example DHSS

Also if you're not a member highly recommend the BCT as a great source of information and good place to meet other families

You can only join partenamut if you live in Brussels or Wallonia.

You don't state your nationality your residence status where you live how long you ved lived in Belgium