Very confused! (body shapes)?

So I am very confused to what body shape I am. My mum has told me I am an hourglass shape but when I look in the mirror and don't breath in my lower half seems much bigger. I have measured my BWH (bust, waist, hips) and the B and the H are the same (approx) and the waist is much smaller (which qualifies for an hourglass shape). Does anybody know what is going on?
PS- I am due on my period so that could have something to do with it :/

Yes, hourglass is ovary, but you could also be adrenal, if you take the quiz on drberg.com, you'll be able to determine the body type