The sex of the baby is determined at conception, but doesn’t show until the fetus is 10 weeks old (which is said to be the 12th week of pregnancy—don’t ask about the math. A trimester is 12 weeks since it is 3 months long, but a pregnancy lasts 40 weeks. What happens to the other 4 weeks? Math is irrelevant). We'll be sure to keep the results of the ultra sound a secret, but we don't mind sharing the results of the sometimes unorthodox methods of determining the sex of the child before it is born. We have no definite answer.
According to Labor of Love dot Com the Chinese birth calendar determines the sex of the baby by taking the age the mother will be when she gives birth (27) and the month the child was conceived (April). With these facts, the Chinese birth calendar says it will be a boy. However, there was one site (out of three that we checked) says it will be a girl. Majority rules, so we have 1 point for a boy, 0 for a girl.
A gal at work told me of a Colombian tradition. You place a knife and spoon under each end of a pillow without the mother knowing which end has which utensil. The mother then sits on the edge of one of the ends. If she sits on the spoon end, it is a girl. The knife end, a boy. Amy sat on the spoon end. (Boy 1, Girl 1)We tried the threaded needle and pencil. If it swings up and down, it is a boy, around in a circle a girl. After settling for a while it went around in a circle. (Boy 1, Girl 2) But then it swung up and down. (Boy 2, Girl 1). We tried it again, both times with the same result, therefore: Boy 1, Girl 1.
So, the results are inconclusive. We will have to Google up some methods and report back to you later.