I hate this nonsense from friends. What's she like usually with her opinions?
I've a friend with four children. The youngest is a year older than my only DC (relevant as we weren't pregnant at the same time). We are both financially matched - comfortably well off; not necessarily private schools well off but stress-free lives that can afford holidays.
My pregnancy was deemed relatively high risk due to previous illness and surgeries. A natural birth was never on the cards as my uterus would almost certainly rupture so I was having a planned c section two weeks ahead of my due date.
We were having a fairly innocuous conversation about hospital parking of all things which led to me explaining that we had gone semi private due to my complications and wanting extra scans etc
She reacted exactly like your friend and wouldn't drop it! "Stick with the midwife's" became her mantra everytime I saw her. It was so bloody annoying. My decision did not equate judgment about other people's choices, I was simply delighted we could afford to have a choice.
It didn't get any better, sorry to say OP. I find myself spending less and less time with her.
A couple of examples :
I chose a baby name that means something to me. Incidentally I haven't yet come across any other people in real life (I know of two famous people one still alive) but who knows what will be on the top name lists over the next few years but I don't care. Out of nowhere she suddenly announced she knew of FIVE babies recently born with my baby's name. Really, how strange was all I said. She keeps insisting it's true although I haven't brought it up again. It's definitely not true I've discovered as I've checked the census and there have been 'three or less' children born with that name any given year for the last decade. Just weird.
I was told not to be more than an hour from the hospital for the last trimester in case I went to early labour (I can't remember the exact details) so we holidayed locally. This was met with utter derision. I would be fine on holiday apparently because some mythical helicopter would be flying above the boat waiting pull me off if contractions started.
I was chatting to her one day and when she asked if I had any news I said I returned to work earlier that week after being on maternity for a year and it was an adjustment. She scoffed it was hardly a real job (I'm a teacher).
This has continued on through holiday choices, hobbies, childcare decisions.
It is utterly exhausting and I think you're right to have decided it's not on even if you didn't respond at the time.
The next time she does similar call her out on it.
In hindsight I think the fact that I loved being pregnant, felt great, was out and about, was excited and happy (I didn't expect to be able to get pregnant) annoyed her hugely.