Relvay makes a pregnancy pillow. We also tell you below when you should not buy one.
The short answer
A pillow can go behind your lower back or neck, but never between your bump and the seat belt. The NHS says the lap strap goes across your pelvis under your bump, and the cross strap between your breasts.
- Allowed: a thin pillow behind your lower back or neck.
- Never: under, over or behind the lap strap.
- Always: recheck the belt after placing any pillow.
Can you use a pregnancy pillow in the car?
Yes, for comfort, in places that do not change how the seat belt sits. The belt comes first: the NHS says to wear it with the lap strap across your pelvis under your bump, not across it, and the cross strap between your breasts. Any pillow has to fit around that, not the other way round.
Hour three, I-95
I was 30 weeks, in the passenger seat, on the way to my own baby shower at my mom's. Five hours each way. By hour two my lower back felt like a fist.
I had read online that you can tuck a wedge under your belly in the car. So I did. It felt great for about ten minutes, until I looked down and saw the lap belt sitting on top of the wedge, halfway up my bump. I sat there with my hand on the buckle, not sure whether to fix it or just stop touching everything.
Comfort can bend. Where the belt sits cannot.
Where can a pillow go, and where must it never go?
Behind you and around your neck is generally fine if the belt still sits right. Between your body and the belt is never fine, for drivers or passengers.
| Spot | While the car is moving | Why |
|---|---|---|
| Behind your lower back | Allowed, if thin enough that you still sit back in the seat | It sits between you and the seat, not between you and the belt |
| Neck pillow, passenger | Allowed | Nothing touches the belt |
| Between your bump and the lap strap | Never | It lifts the strap off your pelvis and onto your bump |
| Under the lap strap to raise it | Never | The NHS places the lap strap under your bump, across your pelvis |
| Between your chest and the cross strap | Never | The cross strap belongs flat between your breasts |
| Shoulder strap moved under your arm or behind you to make room | Never | The cross strap stops doing its job |
| A thick cushion to sit on | Check first | It raises you, which changes where the lap strap lands. Do the belt check below. |
Some retailer guides suggest a wedge under the belly in the car. For your sleep at home that is fine. In a moving car, anything under the bump sits where the lap strap needs to be, so leave it out.
How do you check the seat belt after placing a pillow?
Buckle up after the pillow is in place, then run your hand along both straps. If either strap is lifted, twisted or resting on the pillow, take the pillow out.
- Place the pillow first, then sit back fully against it.
- Buckle up and pull the lap strap low, across your pelvis, under your bump.
- Run a flat hand along the lap strap. Nothing between it and you, no pillow edge under it.
- Check the cross strap lies flat between your breasts and over your shoulder, not near your neck and not under your arm.
- Pull the slack out so the belt is snug, not loose over a soft pillow.
- Recheck after every stop, and any time you shift the pillow.
If the belt will not sit right with the pillow in place, the pillow loses. Take it out and use the stops instead.
Is it different if you are driving?
Yes. A pillow behind a driver's back pushes you forward, closer to the steering wheel, and can change how you reach the pedals. Keep it thin, or skip it while you drive.
- Set your seat so you can reach the pedals and wheel comfortably, then add the pillow and check you can still do both.
- If the pillow pushes your bump toward the wheel, take it out.
- Check your car's manual for seat and airbag guidance, since it differs between cars.
- The NHS suggests sharing the driving on longer trips, and not traveling alone if you can avoid it.
Where does the pillow help most on a long drive?
At the stops. The NHS advises stopping regularly to get out, stretch and move around on long car journeys, and that is the best moment to use a bigger pillow.
- Parked, engine off: recline the passenger seat and rest on your side with the pillow under your bump for a few minutes, if that feels good.
- Before you drive on: seat back upright, pillow out of the way, belt check again.
- While moving: flex and rotate your feet, and drink water. The NHS suggests both.
- Trips over 4 hours: the NHS says compression stockings can help with the small risk of blood clots on long journeys. Ask your midwife whether that applies to you.
Kelly pulled the wedge out at the next gas station, buckled again, and ran her hand along the strap like her sister showed her. She kept one thin pillow behind her lower back and saved the wedge for the stops. Every hour and a half they pulled over; she reclined, lay on her side for ten minutes with the wedge under her bump, walked to the restroom and back, and then did the belt check before they left. She arrived stiff, but not sore.
"I packed this for European travel at 26 weeks pregnant"Amazon review of a portable pregnancy pillow
What should you ask before a long car trip?
Ask your midwife or OB-GYN whether a long drive is fine for you right now, and what to watch for on the way. The NHS says it is best to avoid long car journeys in pregnancy if you can.
- Is a trip of this length okay for me at this stage?
- Should I wear compression stockings for a drive over 4 hours?
- What symptoms on the road mean I should stop and get checked?
- If we have a bump in traffic or any crash, even a small one, where should I go to be checked?
Carry your prenatal records and a charged phone, and know where the hospitals are along your route.
Frequently asked questions
Can I put a pregnancy pillow under my belly in the car?
Not while the car is moving. The lap strap belongs across your pelvis under your bump, and a pillow there sits right where the strap needs to be. Save it for when you are parked.
Can I use a pillow behind my back while driving pregnant?
A thin one, if you can still reach the pedals and wheel and it does not push your bump toward the wheel. Check the belt after placing it.
Where should the seat belt go when pregnant?
The NHS says the lap strap goes across your pelvis under your bump, not across it, and the cross strap goes between your breasts.
Are seat belt adjusters for pregnancy a good idea?
That is a different product with its own questions, and this guide does not cover it. Ask your midwife or OB-GYN and check your car's manual before using any device that changes how the belt sits.
How often should I stop on a long drive when pregnant?
The NHS advises stopping regularly to get out, stretch and move around. Ask your midwife how often for your trip.
Packing for the trip itself? Our guide to traveling with a pregnancy pillow covers what to bring and what to leave.
Kelly's story is a composite based on public posts and reviews from pregnant travelers. Names and details are changed.
