Definatly!! When we had our first we both had girls, but I didn't tell her the names I'd chosen as I barely talked to her, then when we were pregnant with our second babies she knew she was having a boy where I didn't want to know what I was having, but I said if I had a boy I'd call him Jack Lewis, I had another girl and she had a boy, and called him LEWIS!
now I know this may sound mean but with our third she really wanted a girl and found she was having a boy, we decided to find out as I had all the girls old baby clothes and would have got rid of them had I been having a boy, anyway, I was so glad to find we were having a girl at least she couldn't copy! She's said she doesn't want anymore, but I bet if I got pregnant again, she would!