Answer (1 of 2): If you can I would suggest returning the bra that you bought and try on a 38c. However, going down a cup size might also require you to go up a band size, so also try a 40c. This is just a thing that a lot of people have to do. If you can’t go try on bras to buy then you can take
How Will Pregnancy and Nursing Affect My Bra Size? – Kindred Bravely
If my bra is the right size, then why are my breasts uncomfortable in it? - Quora
Playtex Women's 18 Hour Breathable Comfort Wireless Bra , 40C - White at Women's Clothing store: Bras
Bra Strap Blues? Ditch the Drama, Discover Freedom! – The Perky Lady®
I'm currently a 38D but need a bigger cup size and band size. What's after 38D? I tried 38DD but it is way too small. - Quora
Is having a 40C bra size considered big? - Quora
How are bra sizes measured? - Quora
Fantasie Women's Illusion Underwire Side Support Bra, Blush, 30D at Women's Clothing store
When a women loses weight does her bra cup size change? Why? - Quora
Comfort Choice Women's Plus Size 3-Pack Front-Close Cotton Wireless Bra - 38 B, Evening Blue Pack Multicolored at Women's Clothing store
Is there a bra size difference between 38DDD and 40D? - Quora
If You're One of These Two Bra Sizes, You're Probably Wearing the Wrong One
