Originally Posted by RichardCoulter

The advice seems to be related to the ability to fly whilst pregnant. This is what the NHS say about pregnancy & covid:

'Pregnancy and your risk
There's no evidence that if you're pregnant you're more likely to get seriously ill from coronavirus. But pregnant women are in the moderate risk (clinically vulnerable) group as a precaution.

This is because you can sometimes be more at risk from viruses like flu if you're pregnant.

It's not clear if this happens with coronavirus. But because it's a new virus, it's safer to include pregnant women in the moderate risk group.

It may be possible for you to pass coronavirus to your baby before they are born. But when this has happened, the babies have got better.

There's no evidence coronavirus causes miscarriage or affects how your baby develops in pregnancy'.