We originally chose not to find out with DS2 until it went wrong but we weren't fussed about sex. If there's a next time, we'll probably find out so I can prepare myself as that will likely be our last baby.

If you wait to the end, you know you'll love baby either way. If you think you'll be disappointed with a girl, maybe it's best to find out early so you can work through that before baby is born.

Btw, I was also worried about the new baby 'replacing' DS1. That changed as we got to know him. He had his own strong personality from the start. It became more 'real' for us when we found he was a boy. I dont know why, but it did. Even though neither of them stayed with us, both boys were individuals. You'll never forget Jack. Your daughters may not understand now but they will later on.

Maybe get the doctor to write down the sex and put it in an envelope. You can open it when you're feeling more sure. Or baby may decide to keep you guessing anyway.