Ok so I this sounds crazy but is it possible?

flat chest got nothing to do with pregnancy but chest increase in a little bit more size when you are pregnant but after delivery, it will go back to normal. flat chest in females can be due to the presence of high amount of male hormones, androgen. naturally all males got a little bit of female hormone in their body all females got a little bit of male hormone...but in some cases, it can be a bit higher which result in the development of opposite sex characters such as excess facial hair growth, excess muscular growth, flat chest etc in ladies.

this also happens in males if they got too much female hormone...men with boobs!!

so that is the real reason. hope this helps

This isnt true, your friend is juss flat chested it has nothing to do with her getting pregnant bc wen ubget pregnant your breasy gets bigger & if u dont breast feed they stay that way, if u get ur period & could get pregnant thats developing right there, your friend kinda got it mixed up shes juss flat chested just because not bc of her silly reason lols

Not true if anything it would have brought on the developement of her boobs. Everyones boobs get HUGE when they are pregnant!

that is not truee