From The Bump:
At 27 weeks, baby is breathing (it’s amniotic fluid, not air, but it still counts) and even showing brain activity. You’ve got a lot on your brain, too, from wondering what labor and delivery is going to be like to trying to find the best pediatrician for baby. The annoying symptoms you’ve been having probably aren’t going away, but at least you’ve probably found some ways to deal with them -- and hey, maybe you’re used to them right now. As you say goodbye to the second trimester, you can look forward to some pretty embarrassing stuff (like having to pee all the time -- and maybe even when you don’t mean to at all) that’s all par for the late-pregnancy course. It’s time to head down the home stretch. Are you ready?
From What to Expect:
Most babies this age, yours included, still like to snuggle in a slightly curled position inside the uterus (thus the term "fetal position"). Even so, beginning at this stage, your baby's length will be measured from top of head to toe — which makes your baby nearly a full 15 inches now. And at just over two pounds, he or she has doubled in weight from four weeks ago.
Your baby's auditory development (hearing) is progressing as the network of nerves to the ears matures. And even though the sounds your baby hears are muffled (thanks to the creamy coating of vernix covering those ears), he or she may recognize both yours and your partner's voices. So this might be a good time to read and even sing to your baby (or rather, your belly) — and a good chance to start boning up on those nursery rhymes and lullabies you'll need to be repeating (and repeating) pretty soon. And while you're at it, here's another way to have some family fun at 27 weeks pregnant: If your partner presses his ear to your belly, he might be able to hear the baby's heartbeat.
Your baby's taste buds are very developed now too (with more taste buds than he or she will ever have outside the womb, actually). Need a taste test? If you eat some spicy food (you hot mama, you), your baby will be able to taste the difference in the amniotic fluid (but keep in mind that you'll have different mealtimes, with your baby's coming about two hours after yours). Some babies will even respond to that spicy kick by hiccupping. And although hiccups (which feel like belly spasms to you) may seem like they're disturbing to your baby, he or she isn't stressed at all. It's just one more sensation that babies need to get used to.