Find out or not?

I go next Wednesday for my 2nd ultrasound. I will be 20 weeks and 3 days then, and should be able to find out the gender. My boyfriend originally had said he didnt want to know, but I was adamant about finding out. He decided to compromise with me and said we could find out. But I know how badly he wants to wait. As the appointment gets closer, I'm starting to have second thoughts about knowing.

Tell me, did you find out or not? Did you and your partner agree on it? Did finding out make it easier or does it really matter?