Sending positive vibes that you don't have to have a c-section!
I think you can probably mention your fears about the PPD to your doc so that they can keep it in mind to make things a little easier, so that it's one less thing you have to worry about mentioning to the doc after the baby is born. But it sounds like you're excited about your little man's arrival!

Hoping his birth is an easy one for you

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Good luck!