Mommy, you're beautiful how you are! Being a little "Overweight" in today's terms is actually better than being part of the modern "beautiful" crowd. Being "beautiful" in American nowadays means being anorexic/bulimic, avoiding nutrition, having numerous expensive surgeries, and still not being satisfied that you're "thin enough".
Besides, anyone who says big can't be beautiful is a fascist pig who obsesses on the common perception of "beautiful", which is basically guaranteeing an early death for those stupid enough to get snowed by that cult.
People nowadays obsess over the "Thin vs. Fat" bull. I say, be what size you're happy as without having health issues. That is to say, anywhere from healthily skinny to healthily plump.
So long as you're happy about your body, and you're not in danger of serious complications, go for it! If you're happy being a little plump and curvy, go for it mommy, daddy loves you just how you are you know ^w^