What happens in the 3rd week of pregnancy? The ovule must meet the sperm in the first hours of ovulation to get pregnant. Although lots of sperm cells surround the ovule, in general only one of them could succeed to enter into the cell.
Millions of sperm cells start a big race at the same time. The journey of the sperm lasts about 10 hours and at the end, only a few of them have the chance to see the ovule.
The struggle to enter into the ovule lasts about 24 hours and the bravest and determined cell is accepted in. The entrance of sperm into the ovule needs an effort for 20 minutes. After a sperm gets into the ovule, all doors are closed and no more sperms can enter.
Now, your baby’s new life has begun! In this week, your ovule met the sperm cell. Only one out of about a thousand sperm cells achieved this and insemination happened after this long journey. Following the insemination, your baby said: “hello world”.
Genetic materials of ovule and sperms got together, each having 23 chromosomes, built a cell with 46 chromosomes. If the sperm has an X chromosome, your baby will be a girl, if it has a chromosome, your baby will be a boy. Thus, contrary to popular myth, sperm cell defines the baby’s sex.
Mother’s organized and healthy lifestyle is of vital importance for the baby. Exercises will be good for the new embryo as well. Exercises are also good for the mental health of the mother.