I need a bra.

Sooo I’ve been wearing training bras forever. Just recently noticed that they don’t entirely hide my you know what so I’ve needed to wear two of them, plus a cami under everything I wear. However, I’m an awkward heck and me and my mum aren’t super close so I feel weird just going up to her all like “sup ma... think I need a bra” ya know? Any suggestions on how to bring it up less... forwardly?