If your wife is expected within few months, than you can halt your medical and send information to VO. After delivery add newborn and complete the medical. However, after 5 month of pregnancy, medical & x-rays can be performed. But may PPR / COPR or visa will delay and at 6/7 month pregnancy long air-travel is not recommended or not safe for mother & baby, many airlines will not book the ticket.
In my opinion if she is 4 or 5 month, than better to halt till delivery. PPR & COPR will take 4-6month and by the time your baby will be expected than you have to go back again for all process.
Hope that helps,
6/7 month preg. Air travel not safe ? Who told you this .
Only first 12 week. And last 4 week are unsafe .
Else you can travel occasionally long haul air travel if there is no complication in your pregenencey .
Only thing needed is lot if drinks , and walk during flight .
Even flying from Canada to Pak/India. If you choose flight with 1-2 hault then it's not a problem.
1 hour car journey is more risky then 8 hour flight for pregnant lady .
Thumb rule : if mother is confertable then baby too.
Ask your grandparent , they will tell you stories that how people have taken pregnant women in labour to hospitals 30-40 km away from there village in TACTORS and when there used to be muddy roads in rural India.
Please speak to your GP and he can tell you better what safe what's unsafe .
Allah knows best .