Here's my story... 20+ years ago, my husband and I were expecting our second, and final, baby. We had a son, and I was positive this second baby was a boy. No doubt in my mind. The scan was unable to tell the sex, so we had to wait until they were born to know for sure, but whatever, I already knew.
We had settled on a boy name very easily. We never settled on a girl's name, not even closely. I hated his choices, he hated mine. Literally, on the way to hospital after my waters broke, I said we can use our boy's name and "feminise" it with a 'y' instead of an 'e', like my middle name, and my husband agreed. We had a nice laugh because obviously we were having another boy and we were just being silly.
Turns out they were a girl, we did use my idea, she's a grown woman now, she absolutely loves her name, and we have had endless compliments about it.
But yes, naming a baby can be very hard work.