After years of wearing the wrong size bra, a friend told me I was measuring all wrong and turned out to be right- I'd worn a 34a or aa since my teens and was really a 32b. That was over 10 years ago and I've since had 2 babies (not babies any more, both at school) and am about 1/2 a stone heavier. 32bs still do sort of fit but I have a bit of gaping and they don't look quite right under clothes. I also have quite a lot of back fat squidging over the band, mainly at the sides.
I've just measured around my ribs and (despite the back fat squidge) am measuring more like 30 or 31 ins. I can't imagine fitting into a 30 inch bra! I think it would feel really tight.
Any tips gratefully received...I should probably just take myself into town and get measured but would prefer to work it out at home and order online.