21 Weeks Pregnant - What To Expect Your 21St Week Of Pregnancy - Pregnancy Week By Week - 2024

21 Weeks Pregnant – What to Expect Your 21st Week of Pregnancy

How big is your baby in week 21? About the size of a large banana (seven inches in length and almost 11 ounces in weight).You may be feeling more tired than usual from all the movement going on, but your baby sleeps about 12-14 hours a day. Even if it doesn’t seem so.

Want your baby to eat his or her broccoli later? Eat yours now! Your baby’s taste buds are highly developed now, and studies show that children exposed to certain foods while a fetus, are more likely to eats those foods later on in life.

It’s week 21, and your little monkey is about the size of a medium banana, around 7 inches long and almost three-quarters of a pound. As he gets bigger and bigger, you’ll be able to feel those movements more and more, at least when he’s not hunkering down for one of his many naps.

Naps? Yup. Though it may not feel like it with all the kicking and poking going on in there, your snoozer sleeps as much as 14 hours a day, but not because it’s boring at Hotel Uterus. On the contrary, you keep things very interesting simply by switching up the catering menu. Those teensy taste buds on his tiny tongue are now developed enough so while he can’t actually eat the foods you do, he can taste them in the amniotic fluid.

And taste them he will as he gulps several ounces each day for hydration and nutrition, and to practice swallowing and digesting. So sip on something spicy and within an hour or two it’ll feel like a dance party in your belly as your budding baby burrito gets a hint of that enchilada. Savor some scampi, and your little shrimp will catch a wave of garlic.

Need another reason to add variety to your second and third trimester menus? Studies show that babies who have sampled certain foods while in utero are more inclined to eat them once they hit the high chair. So putting broccoli, carrots, and kale on your plate now packs a one-two punch – great nutrition for you and your baby, and a greater likelihood your potentially picky eater will savor those veggies later on.


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  1. Anyone due in December 2020? I’m currently 21 weeks and due December 24, I’m still struggling and experience servers hyperemesis gravidarum . Just wanting someone to talk to 😁

  2. I think i got my baby boy sleep pattern on check he's awake around 10 am through 11 ish and sleeps all throughout the day. At 12 am he's awake again kicking and moving around 😅💖

  3. 21 weeks today with my fifth baby, I have 3 boys and 1 girl, I don’t really no what I’m having I have an appointment in weeks time hopefully she’s a girl but if he’s a boy we will still be happy because is God blessings

  4. I literally ate shrimp scampi for the first time last night along with garlic & cheese asparagus and oh my did she kick like crazy last night! And she rarely moves, well she does but she’s just so gentle when she does that I really have o concentrate to feel them throughout the day 😊 Is there a study showing if baby likes when we eat soemthing spicy or like garlic? I would like to know 🙂 I on the other hand had a miserable because soemthing didn’t agree with me and I’m thinking it was the garlic or asparagus lol

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Written by Claire

Claire is our Community Manager here at New Moms Forum. A mom of two (almost grown-up babies), Claire has been building and operating community-based websites for almost 20 years. In her downtime, Claire enjoys spending time with her family and drinking copious amounts of red wine!

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