Boobs!

Okay. So I’m a girl with small size B, maybe A (depending on certain bras), boobies. But before I lost quite a bit of weight by boobs were a comfortable C.

I miss my old boobs but I don’t want to put the weight back on as I love my body now. But how do I get bigger boobs again without going through cosmetic surgery and getting pregnant, as I am only 17?

I’ve been told that if i do push-ups it will do something to my pectoral muscles and I will get larger boobs because of this.

Is this true?

Or is there any other advice out there??