I was born in1February 2, 987. My last period was April 10, on February 26th of the lunar calendar. Am I pregnant with a boy or a girl?

The sex of a person is determined by the sex chromosome in the germ cell, and the pregnancy of a man and a woman has nothing to do with the date of birth and the time of pregnancy.

Half of the sperm have (22+X) chromosomes, and the other half have (22+Y) chromosomes. There is only one chromosome type in an egg, namely (22+X). X and Y in chromosomes are sex chromosomes, so they are called sex chromosomes.

When sperm and egg are combined (when the egg is fertilized), if the sperm with chromosome (22+X) is combined with the egg, the two will combine into (44+XX) and develop into a female fetus. If the sperm with chromosome (22+Y) combines with the egg, the two will combine into (44+XY) and develop into a male fetus.