Welcome to the third month of your pregnancy journey! The third month is the period between 9-12 weeks of pregnancy. It marks the end of the first trimester; hence a relief for many expectant mums as the first trimester comes with some challenges. Unsure of your due date? Check out our due date calculator here. 

Common Changes in The Mother

The morning sickness that you may have struggled with in month 2 will now taper out by the end of this month. Besides the growth of the belly and weight increase, other physical changes that appear during this time may include:

  • Breasts become tender: the breasts might become tender and heavy as your body prepares for breastfeeding. Also, the breast size increases and the areola becomes darker and larger.
  • Veins are visible: As the blood volume increases in your body and your heart pumps faster, they make the veins more prominent on your breasts.
  • Weight gain ( track your weight using our pregnancy weight tracker here)
  •  Stretch marks are visible.
  •  Dry and itchy skin

Read more on changes that happen during pregnancy here

Week 9

The embryo has grown to measure 30 mm (1.2 inches) in length and weighs 1.91 grams. At the size of a large kidney bean, your baby’s fingers and toes are now well defined. 

The upper lip, as well as the nose tip, is being formed. The tongue and the larynx are also developing this week. 

The eyelids are developed, although they stay closed for several months. The main construction of the heart is complete.

Week 10

At week 10, your baby is the size of a green olive and has moved from being an embryo to a foetus. The feet are 2mm long and his neck is beginning to take shape. It weighs just 4 grams and measures 1.25 inches (3.1 cm) from head to rump, the body muscles are almost developed. 

The jaws are in place and the mouth cavity together with the nose are joined. The ears and nose can now be seen clearly.

Fingerprints are already evident in the skin. and the nipples and hair follicles begin to form

Week 11

Measuring at 1.6 inches and weighs just 7 grams, your baby now looks as big as a strawberry. It’s neurons at this stage multiply and the fingers and toes have completely separated. The taste buds are starting to develop too.

Baby has tooth buds can swallow and stick out his or her tongue. If it’s a boy, the testicles are starting to produce the testosterone hormone. 

Week 12

At 12 weeks, your baby measures 2.1 inches (5.4 cm) long and weighs just 14 grams. It now looks as big as a plum.

This week, the fingernails and toenails appear. The feet are almost half an inch (1cm) long and your baby starts moving spontaneously. This week, its face is beginning to look like a baby’s face. He can suck his thumb, and get hiccups too!

See how your baby will be developing at four months.


Please note that development differs from one child to another. 

Content intended for educational purposes only, and not a substitute for medical advice from your doctor.

Be careful when using any products mentioned on this website. We hold no regulations for such products or their providers.

Last reviewed March 2019

Sources: momjunction, pampers, baby2see

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