gaining weight and freaked out!!

HI guys! I used to be actively involved in this website when i got pregnant 7mths post op. well, i am in need again! I am up 15 pounds from last November! I know that I havent exercised like I should but really,15 pounds. I got breast implants and a lift last Nov and it seems like ever since then I have just gone up a pound at a time. Today I started just having protein shakes for each meal and I am going to really start my routine of moving - can you guys give me some advice and support. I kind of feel stupid that I have allowed this to happen when I love the way I look after dropping all that weight!!!!!!!!!!!