Pregnant women typically start showing a baby bump between about 12 and 20 weeks of pregnancy, which corresponds to late in the first trimester through the second trimester. Most commonly, the bump becomes noticeable around 16 to 20 weeks (4 to 5 months) into pregnancy

. However, the exact timing varies widely depending on several factors:

• First pregnancy vs. subsequent pregnancies: First-time moms usually show later, often closer to 16-20 weeks, because their abdominal muscles have not stretched before. Women who have been pregnant before tend to show earlier due to looser muscles and uterine changes

• Body type and weight: Women with a slimmer build or less abdominal fat may show earlier, while those with higher body weight or more abdominal fat may show later, sometimes not until the third trimester

• Number of babies: Women carrying twins or multiples often show earlier due to the larger size of the uterus

• Other factors: Genetics, height, uterine position, and muscle tone also influence when a baby bump appears

In summary, while many women start showing between 12 and 20 weeks, some may notice a small bump as early as 12 weeks, and others may not show until later in the second trimester or even the third trimester. If a bump hasn’t appeared by the third trimester, it is advisable to consult a doctor to ensure all is well

Key points:

• Most start showing between 12-20 weeks.
• First pregnancies tend to show later than subsequent ones.
• Body shape, weight, and number of babies affect timing.
• Showing as early as 12 weeks or as late as third trimester can be normal.

This variability is normal and depends on individual circumstances.