HOW TO SELECT YOUR BABY'S SEX.
Sperm cells are either X or Y. The Egg cell is always X. If X-Sperm cell meets the egg(X) the baby will be a Girl (XX). If Y-Sperm cell meets the egg(X), the baby will be a Boy (XY).
The Y-Sperm cells move fast but die fast (its lifespan is about 24hrs). X-Sperm cells move slowly but survive longer (up to 3-4days).
Therefore, if you have intercourse some days before ovulation, most of the Y-Sperm cells would have died leaving mostly X-Sperm cells to fertilized the egg
Here's a simple way to calculate your ovulation period.
1. From the first day you see the blood of your period.
2. Pick up a calendar and count 15 days including the first day of the blood stain.
3. Mark the 15th day with a pen.
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