Pregnancy by week

Your pregnancy: 40 weeks

It's go time! Anytime now you'll be prepping to give birth.

Felt watermelon used to show how big baby is at 40 weeks

Photo: Mandy Milks, Erik Putz, Anthony Swaneveld. Felt:

What’s going on in there: Fetal development at 40 weeks

A full-term baby typically weighs about 3.4 kilograms (7.5 pounds)—about the size of an average watermelon—and is about 51.3 centimetres (20.2 inches) long. Her eyes are open when she’s awake, but they’re closed when she’s sleeping. At 40 weeks pregnant, your baby’s immune system isn’t fully developed yet, so your placenta will continue to provide antibodies up until the birth. Her hair and nails are still growing.

40 weeks pregnant symptoms

Sore ribs? Your ribcage has probably shifted to accommodate your baby, who might be causing pressure and pain as she moves and kicks. It’s OK to give that baby hand or foot a firm nudge—it won’t hurt the baby. Leaning back in a chair or applying a cold pack to your ribs might ease the ache, too.

Your doctor may order a non-stress test, which monitors the baby’s heartbeat and checks that it speeds up with movement. You might have an ultrasound this week to check on growth, movement and amount of amniotic fluid

Anxious, excited, huge, uncomfortable, irritated, mellow, exhausted: That’s all part of these final few days. Pep talk: About 85 percent of babies are born within a week before or after their due dates, so hang in there!

What’s on your mind this week

All baby, all the time: Even when you’re getting on with your non-mama life, your little one is likely always in your thoughts at this point in your pregnancy. It’s totally normal (plus everyone keeps texting you, asking “Have you had the baby yet?”). Of course, labour and delivery are on a continuous loop, too. Anxiety and fear about giving birth aren’t always easy to talk about. To deal, talk it out with someone with common sense who won’t feel the need to share freak-out birth stories. Review your pain-management options and reframe your view of labour and delivery as step-by-step parts of a process rather than one overwhelming event.

Booking a doula, labouring at home until your contractions are one minute long and three to five minutes apart, taking warm showers and baths and talking to your doctor or midwife about reducing the need for interventions like IV lines (and, therefore, staying mobile during labour) are good ways to up the odds of an easier labour. Still, despite your best-laid plans, you may not have the labour and delivery you want, which is a real-life kickstart to the uncertainties of parenthood!

If everyone from the parking lot attendant to your mother-in-law is sharing tips on how to kick-start labour, it helps to know which ones have legit science to back them up. Sex (even if it’s not exactly what you’re in the mood for) can, in fact, lead to labour. Semen contains prostaglandins, which help soften the cervix, while orgasm releases the hormone oxytocin, which signals the uterine muscles to contract. Skip sex, though, if you’re bleeding or your water has broken.

Pineapple, spicy foods, castor oil and red raspberry-leaf tea are traditional methods, but they tend to fall into the old-wives’-tale category. Nipple stimulation to bring on uterine contractions may help start labour, but research shows that it can cause more contractions and a more intense labour. Are more babies born during the full moon? While the hospital staff may say yes, studies show that it’s not the case.

Just for kicks

It’s definitely not required or expected, but a little treat for the labour and delivery nurses is a class-act move. A box of chocolates, gift cards for a coffee shop near the hospital and a basket of mini hand lotions are thoughtful ways to become patient of the week. 

Baby names

Ines, Moana, Gunther, Kyd?! The hottest baby names for 2017 are…

Pregnancy to-do list: Week 40

R&R should be at the top of your list this week. It’s a great time to take a power nap, watch TV, read, catch a movie or meet up with a friend. Actually, it’s also a great idea to canvass your friends for great Netflix, TV and download recommendations. Seriously, make a list and stock up on entertainment options so that you can turn all that time on the couch, snuggling with a baby on your boob (or snoozing in your arms), into a cozy night in with your partner. When the going gets tough, a fun, frivolous show to binge-watch or a comedy special can help lighten the mood (and keep you awake during late-night feedings).

Check the pre-baby prep details, too, making sure that both phones are charged (and there’s an extra charger in the go bag), the camera has working batteries and an SD card and the car has gas. If your partner is going out for one last night on the town with friends, remind him not to overindulge: Your water could break at any minute—even at 1 a.m. on a Saturday night.

Read more:
7 tips on how to ask for help with your new baby
Why moms love that new baby smell
Next up: 41 weeks pregnant


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