Size 40M Maternity Bras
Your 40M maternity and nursing bras should hold comfortably without a hard pull on your shoulders. If the straps dig, a loose band or crowded cup can be part of the cause underneath. Read our Maternity Bra Size Chart for measuring guidance and help choosing a useful starting size.
Sort by
1 product
When Your 40M Nursing Neckline Presses After Feeding Access
An uneven nursing cup can press against you if its edge hasn't settled after closing. Check that the fastening is fully closed and smooth any tucked fabric. If the edge still presses, look for more cup room instead of pulling it higher.
Elila Cotton Soft Cup Nursing Bra 1613 has wire-free cotton cups and three-piece cups.
40M Nursing Fullness Changes The Cup Fit
If the cups feel different through the day, changes in fullness may be affecting the edges. Check the bra at a time that reflects when you'll wear it. The neckline and sides should feel gentle without needing repeated adjustments.
Notice whether the neckline of Elila Cotton Soft Cup Nursing Bra 1613 starts digging during your usual routine.
When Your 40M Nursing Cup Is Difficult To Refasten
A nursing opening that is difficult to refasten can leave the cup twisted or uneven. Bring the fastening together without pulling the strap sharply upward. Smooth the cup back into place and check that its edge hasn't folded inward.
Practice closing the nursing fastening on Elila Cotton Soft Cup Nursing Bra 1613 without twisting the cup.
Frequently Asked Questions About 40M Maternity Bras
What should I check in the cups of a 40M nursing bra?
Start with the described cup construction and judge the room around your breast. An opening for feeding doesn't tell you whether that shape will fit. Refasten the cup fully and check its neckline and outer edge.
Why does my 40M nursing cup feel uneven after refastening?
The fastening may be closed even though the cup fabric hasn't settled underneath. Check for an edge tucked inward or a cup twisted at the side. Straighten it and judge the fit again without tightening the back.
Can I choose a 40M nursing bra during pregnancy?
Yes, provided the bra feels comfortable and offers the access you want. Check how the cups sit as well as how the nursing fastening works. Close the cup again to make sure the neckline settles gently against you.
What should I do if my 40M maternity bra presses when I sit?
Start by checking the lower band and cup room without pulling on the straps. A rolled edge can press more than a flat band at the same fastening. Smooth it out and try a different fit if it rolls again.
Should I leave extra growing room in a 40M nursing bra?
No, a larger label won't tell you how the bra will fit later. Extra room can leave you tightening the straps to stop the cups moving. Look for a cup that holds you comfortably without needing that extra pull.
What is the UK equivalent of US 40M?
On our chart, US 40M is UK 40J. Look at the bra's sizing guidance before choosing a displayed label. The right letter helps you start, but the cup still needs to follow your breast comfortably.
Browse the everyday styles in our 40M bras.