Hello 3rd trimester! 27 weeks

You are now in the third trimester, and last, of your pregnancy! Your baby's crown-to-rump length is about 9.6 inches and your baby's total length is approximately 15.3 inches with his legs extended! (like a head of cauliflower) Your baby now weighs about 2 pounds 3 ounces and is going to grow rapidly during this last trimester! Your uterus is about 2.8 inches above your bellybutton.
He's sleeping and waking at regular intervals, opening and closing his eyes, and perhaps even sucking his fingers. With more brain tissue developing, your baby's brain is very active now. While his lungs are still immature, they would be capable of functioning — with a lot of medical help — if he were to be born now. Chalk up any tiny rhythmic movements you may be feeling to a case of baby hiccups, which may be common from now on. Each episode usually lasts only a few moments, and they don't bother him, so just relax and enjoy the tickle.
If your baby were born now, it would have an 85% chance of surviving. Even though your baby is still not fully developed, she would be well within the limits of premature viability. You still have approximately 13 weeks left of your pregnancy, and during this time your baby must continue to grow and develop. If your baby was born at this time, she would have several complications that would require special attention. Because babies do not have adequate amounts of fat at this time, your baby would have to be kept inside of an incubator for warmth. Because the air sacs in your baby's lungs do not yet have surfactant, she would require an artificial respirator. Your baby's brain, liver and immune system still need to develop more also.