Could always try a needle test! If you're only about 4 weeks away from being able to have a sono, then the belly one even should be correct! (:
To do a needle test, simply have someone that's not pregnant perform it for you. Use a needle you're sure is real metal, or simply a plain metal band. Hang it on a string with about 5 inches length. Lay down, and have the person testing you hang the needle over your belly, making sure not to be wearing ANY metal around your belly, and to both be VERY STILL. Do not let the needle touch your skin or the person testing you. If a circle, it's a girl. If a straight line it's a boy (:
The other way to do it is to remove any rings from your LEFT hand, as well as any metal bracelets. The person testing you will also have to remove the metal from their hands too, as this can mess with the answer. Place your hand palm open horizontally over the testers hand. Your palm should be facing down, and your testers hand should be palm up so your thumbs form a U shape. Again, making no contact with any skin, have your tester dip the needle 3 times between your thumb and hold it very straight over the back of your palm. Results will be the same - circle girl, line boy.
Some that I've heard are that if your linea Negara goes all the way up your belly it's a boy and if it stops at your belly button its a girl :) that one was true for me! Lol
All the wives tales said I was having a girl. When I talked I referred to my baby as "he". We even had a boy name picked out and started calling baby keegan Shane. My dreams showed I was having a boy. I was so sure it was a boy. All my family and friends said it was going to be a girl. Here I am today with my one month old daughter :) which I secretly wanted a girl a little bit more but I didn't care as long as baby was healthy which she is :)
I believe you will know what your having. ever since I got pregnant i always said "he" when I was talking about my baby, it felt natural. I had a dream it was going to be a girl but still thought it was a boy. today I found out that it was a boy. whatever you feel its going to be is how you will tell. at least in my opinion.
I heard if you eat like a growing boy you will have a boy....which in my case is true
My first two are girls. This time I had a feeling the whole time that its a boy, and like you whenever I thought about my baby I always thought of him as a boy. I didn't want one over the other just had a strong feeling. Turns out he's aboy :) The wives tales are all just by chance they are 50/50 going to be "true" for everyone.