My baby legs was closed my whole pregnancy. I went to the doctor when I was 7 months and she told me I was having a girl can you tell me if that is true.

Sorry but we cannot tell over the internet. The person who did your ultrasound is very educated in these matters.

Just be aware that this is not 100%. I have a friend who was told she was going to have a boy and ended up having a girl.

So, unless you had an amniocentesis it could still go either way. Probably a girl, but you never know.