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The basic principle is simple. the boy must have sexual intercourse with the girl (that is insert his penis into her vagina) he must then ejaculate sperm into her. for her to become pregnant she will have to have this done at a time when her menstrual cycle is at a point where her ovary's have released ovum for the boys sperm to fertilise. this state of affairs is present for only about 5 days during her menstrual cycle. I would suggest looking up a couple of websites on "human conception" or on the "menstrual cycle" to help you understand the process better.

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13y ago
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Q: How does the girl get pregnant by the boy?
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