M.M.
It sounds like you are just waiting to find the right wives tale to tell you "you're having a boy!" I think you should probably try to re-focus your energy onto the idea, that maybe you're having a girl. I think you know too, that the only 100 percent way of knowing is to have another u/s. If it's driving you crazy, just talk to your doctor TODAY! Don't wait until your next Dr. appt. And certainly don't waste your time trying to find different ways to guess the sex of your child. If you have a boy, great...if you have a girl, great! You should just be focused on 1-healthy baby, and not spend so much time on the sex. Be grateful you are having a healthy child, and enjoy the rest of your pregnancy. If you don't have a boy this time.....well, you could always try again!