Jeff met Julie and they started a relationship. A few years into their relationship Jeff proposed to Julie and eventually got married.
Together they decided they wanted to have a baby so in order to have one Julie needs to get pregnant.
To get Julie pregnant Jeff needs his sperm cell to swim to Julies egg cell during sexual intercourse.
2 weeks after they tried for a baby Julie realised her period was late so she took a pregnancy test and it came out positive. This means Julie was now pregnant and will not have her period for 9 months.
While Julie is pregnant she was told by her doctor that she is not aloud to drink, run, eat risky things, etc.
Julie followed all these rules and her baby finally came out healthy after 9 months. The baby was a boy and they named him after Julies grandad, Kobe.