Ovulation is a phase of the female menstrual cycle that involves the release of an egg (ovum) from one of the ovaries. It generally occurs about two weeks before the start of the menstrual period.
Although you are pregnant from the moment of conception — when a sperm fertilises your ovum (egg) —the first trimester of pregnancy is counted from the first day of your last period through to week 12. This is because when you conceive naturally, you usually won't know the date of conception.
Read MoreThe second trimester represents the middle part of your pregnancy, from weeks 13 to 26. During the second trimester, your baby will grow from about 7.5cm in length, and weighing 30g in week 13, to about 23cm in length and 820g at week 26.
Read MoreThe third trimester is the last phase of your pregnancy. It lasts from weeks 29 to 40, or months 7, 8, and 9. During this trimester, your baby grows, develops, and starts to change position to get ready for birth. Now that you've reached the third trimester, you're in the home stretch of your pregnancy.
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