Everyone's having girls but me!

I have always dreamed of having a baby girl my whole life. I have 3 boys and I have had 2 miscarriages in the past 2 years. My baby is 5 and I keep getting crap because I still dream of that precious little girl. My sister just found out she is having a girl and I'm so jealous! I'm the ONLY one on my side and my husbands side that doesn't have a girl. I don't want to be done but I am rediculousely terrified of having another boy. I need advice. Not the "be happy with what you get type" real advice on how to deal with my feelings.