I’d say congratulations and God’s blessings to you! In 1989, our 19 year old teaching assistant showed up at school kind of in a state of amazement. She’d just found out her 55 year old mother was pregnant, although supposedly through her with menopause! Well, God had other ideas. Baby #13, a girl, was born at home with a midwife, two days after Mom’s 56th birthday. Stephanie was 6lbs, 1oz, a day late, perfectly healthy. Mom had a normal pregnancy despite the doctor insisting she come in every other week, and then every week. He about flipped when she informed him she was having the same midwife as her last child 15 years before. Since they were Conservative Mennonites, he knew better than to bring up abortion. The grandchildren were all excited to go see grandma and grandpa’s new baby!
Stephanie is married now with a large family of her own. Last I heard, her mother is still living although her father passed away in 2015 or 2016.
As for the upset teen girls, they should be ashamed of themselves! Who says they’re going to be surrogate mothers? And even if their help is needed more than usual, they should consider it an honor to help raise their youngest sibling.
P.S. Do fire the doctor and find one who loves babies!