Is there any way to enlarge my breasts?!

Breasts are more than 80% pure fat (adipose tissue) so of course, the obvious answer (and you mentioned it yourself with your mother) is gain some weight. If you're very thin, like, skin and bones, you have no hope of growing more in the chest department. Now, all the crap teenagers naturally eat have enough hormones already to make that happen (and might explain why you began a year earlier), but sometimes genetics are just too powerful and seeing as your Mom isn't well endowed either, you probably won't be. The only other way, of course, is breast augmentation surgery or a "boob job" (but you'd be a shallow fool to do that at your age or before you're 18). Your life won't end or be worse just because you don't have bigger breasts. You just have to learn to live with it and discover the benefits of push-up bras if you haven't already :)

Sorry, hun, it's probably just not meant to be.

1--You might still grow. Some women don't finish growing until their late teens or even early 20s.

2--There is nothing wrong with your size.

3--It's genetic. Unless you can time travel and change your ancestors, there is nothing you can do to change the shape or size of your breasts.
Eating more might gain some fat--but there is no guarantee it will land on your breasts. It might land on your buttocks or hips or legs or face.
depends on genetics, again.
and gaining weight to increase bust size is kinda dumb.
A healthy weight is what you want, no matter what.
DO NOT take hormones!
Your boy makes enough of its own.
Adding extra hormones to your system is an invitation to cancer of the breast or uterus.
Leave well enough alone.
Love yourself.

Eating more and higher fat foods might work for you. Your breasts will be the first place you gain weight, and also the first place you lose it. Either way, I wouldn't worry much. I'm sure you are beautiful as you are. :3

Depending on some birth controls, you might increase one cup size at most. Other than that, there's breast enlargement surgery.