Question - Late Bloomer

So, I turned 15 in April, and didn’t have my first period til December 2018. I’ve had more than just one and they seem to be slowly regulating. I was just curious to those who were/are late bloomers how long it took for your body to “grow” so to speak to get more curvy? I’m pretty small in the chest. I am in a 38A, and have the tiniest butt with little to no hips. Just curious how long it took before your body began to change noticeably. Thanks loves. :)