I will be finding out. My first was a delivery room surprise, and I didn't realize until he was born how much I wanted a girl, and how much I had convinced myself that he was a girl. The whole "oh, I'll be so happy the baby is here that I won't care" thing totally didn't work for me. I had horrible postpartum depression and it took months for me to bond with him. I found out with both ds2 and ds3, and it was so much better to know beforehand and get myself prepared. I found it much better to work through the disappointment while still pregnant then have to deal with that on top of all the post-delivery hormones and exhaustion. My depression got better each time.