I went off the pills 6 months ago, I am frustrated, I keep gaining weight

Hi everyone, I know these are older posts, but has anyone found a solution to this problem? I am experiencing the exact same thing and it's been driving me INSANE. I went off the pill about 6 months ago (was on for 4 years) and I've put on 19 pounds. I eat better than I ever have (very clean diet, hardly any sugar or sweets) and exercise intensely at least 4 times a week. I'm also a nurse so I'm on my feet all day at work. I'm so frustrated, I had a major breakdown to my husband today because I can't figure out why I keep gaining weight. Every time I step on the scale, it's more than the last time. The only thing that has changed is that I stopped the pill. I have a doctors appointment in 3 weeks and I'm actually hoping she finds something wrong to explain why this is happening. I'm on the verge of completely losing it :( Any advice from everyone? Hate to say it, but at least I'm not alone in this problem. I would've never even started taking the pill if I knew this would happen when I stopped it. I hope at least one person out there has figured something out. Anything would help at this point.