The senses of taste and touch advance in week 22 of your pregnancy. Taste buds are starting to form on your baby’s tongue, and his or her brain and nerve endings are now mature enough to process the sensation of touch. If you could sneak a peek at your baby this week, you might see him or her experimenting with this new found sense of touch — feeling his or her face, sucking a thumb or touching other body parts.
Your baby’s reproductive system is continuing to develop. If you're having a boy this week his testes begin to descend from the abdomen down to the scrotum. If you’re having a girl, her uterus and ovaries are now in place, and her vagina is developed. Your baby girl has already made all of the eggs she’ll need for her own reproductive life.
Your lower ribs are starting to cause you pain as they get pushed outwards by your growing baby and your expanding uterus. Your ribcage rises by a small amount as it is pushed upward. To minimize the discomfort try sitting up as straight as you can or lifting your arms above your head. This is an ideal time to investigate the different methods that you can use to ease discomfort now and during labour and birth.
Your baby is getting larger every day. Eyelids, and even the eyebrows, are developed. Fingernails are also visible. Your baby's organ system are becoming specialized for their particular functions. Consider the liver. The function of the fetal liver is different from that of an adult. Enzymes (chemicals) are made in an adult liver that are important in various body functions. In the fetus, these enzymes are present but in lower levels than those present after birth.