Boy or girl?

Yo
I've had 4 scans since week 20 and baby has had legs closed in all of them except for 5 seconds at our first 20 week scan and neither did the sonographer nor hubby and I saw anything in between the legs so sono said baby was a girl. We don't mind boy or girl and are beyond excited to be giving our 2 year old daughter a sister and a bff. All other scans sonos have also said girl. At our last one I was given this pic and also told girl. The three lines have been there at all 4 scans...I'm just worried I'lle end up having a boy! >_< not that there's anything wrong with boys but we're now excited and looking forward to a girl. What do you all think? 

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