I've been on estrogen for about two months.the buds started small about three weeks ago and are now about 3". How much bigger will the bud get

Behind the breast fat, mine are about the size of a. 1/2 tennis ball.

I've been on estrogen for about two months.the buds started small about three weeks ago and are now about 3". How much bigger will the bud get

depends on your closest relative. If your mom had big boobs or sister then they prob will get around there size. But a little smaller...
Is it straight up estrogen your on like pharma grade???

Progynon Depot - 10 mg every 4 days. And yes all 4 sisters mom on both sides of family are very big