Maternity Fitting and Sizing Guide

Becoming pregnant means saying goodbye to your pre-pregnancy body and watching as your shape changes entirely, sometimes daily! We know mums-to-be worry about their changing bodies and want to feel great in their clothes even when they're nine months pregnant and can no longer see their toes! We fit our garments on mums-to-be so we fully understand your needs during pregnancy, making sure the clothes look good and are comfortable on you at every stage.

Check your measurements against our size chart to ensure you are buying the right size.

Remember that we are all different shapes & sizes and sometimes we can sit in the middle of a size. Trying a size above or below can help achieve the most comfortable fit for you.

Our well designed maternity clothes are versatile and often suitable for post-pregnancy.

  8 10 12 14 16 18 20
European size 36 38 40 42 44 46 48
Dual size guide S S M M L L XL
Full bust (pre pregnancy) 82 87 92 97 102 107 12
Full bust 86 91 96 101 106 111 116
Dual sized bust 86 - 91 86 - 91 96 - 101 96 - 101 106 - 113 106 - 113 111 - 116
Waist (pre pregnancy) 64.5 69.5 74.5 79.5 84.5 89.5 94.5
Bump circumference (early stages - 3rd trimester) 87 - 96 92 - 101 97 - 106 102 - 111 107 - 116 112 - 121 117 - 126
Low hip (pre pregnancy) 89 94 99 104 109 114 119
Low hip 93 98 103 108 13 18 123
Dual sized hip 93 - 98 93 - 98 103 - 108 03 - 108 113 - 118 13 - 118 118 - 123
Thigh 52 55 57.5 61 64 67 70
Inside leg (petite) 74 74 74 74 74 74 74
Inside leg (standard) 79 79 79 79 79 79 79
Inside leg (longer length) 4 84 84 84 84 84 84

measurement shown are in cm's

How to Measure Maternity Clothing

maternity size 1 maternity size 2  maternity size 3 
Bust - measure bust at fullest
point
Waist / Bump Circumference -
measure waist at fullest point
Low hip - you can find 20cm
below your waist

Your Bra Measurement - 2 Steps

bra measurement
  • In order to work out your bra size, you need to establish two measurements - under the bust and the cup size. Ideally measurement should be taken over your current bra but without your top on.

  • A) For under bust measurements you need to take a firm measurement under the bust holding the tape measure in a straight line and wrapping it around you. Working in inches add 4 to the measurement if it is even and add 5 if it is odd. For example, if you measure 31 inches, add 5 to make your under the bust measurement 36 inches.

  • B) Over bust / cup size - you need to measure loosely around the fullest part of the cup ensuring the tape measure is level at the front and the back.

  • To work out which cup size you are: the difference between measurement A (under-the-bust measurement) and B (your bust size measurement), equals the cup size. For example, if you measure 36 under the bust (A) and 40 around the bust (B), the difference between the two figures is 4 or a D cup. See the chart below to work out which number equates to which bust size.

  • Bra fittings are widely available throughout the high street.

  • You should be measured for a nursing bra around 36 - 38 weeks into pregnancy.

Mothercare bra band size
inches 32 34 36 38 40 42 44 46
cm 70 75 80 85 90 95 100 105

 

Cup size
size A B C D DD E F G
inches 0 1 2 3 4 5 6 7
cm 10 - 12 13 - 15 15 - 17 18 - 20 20 - 22 23 - 25 26 - 28 28 - 30

 

Trying On and Trouble Shooting

bra 1   bra 2    bra 3
band too big - band riding up at the back

Go down a band size, but up a cup size. 36D band too big, try 34DD.
  band too small - straps parallel and strees on the hook and eye

Go up a band size, but down a cup size. 34D band too small, try 36C.
  correct band size
Band should run straight, right around the body. Straps should appear in a "v" shape.
bra 4   bra 5    bra 6 
cups too big - fabric sagging and gaping at the cups
Keep the band size the same, but go down a cup size. 36D cups too big, try 36C.
  cups too small - breasts not encased in the cups
Keep the band size the same, but go up a cup size. 36D cups are too small, try 36DD.
  correct cup size
You should be able to slide two fingers under the band, cup edge, underarm and straps. The front of the bra should sit close to the chest.