I was on the same pill as you and hated it because it made me feel extremely low when I was on it. It is very normal to have a low after stopping contraception, because it essentially messes with your hormones which need to get back to normal after you stop taking it. However because you already have a vulnerability to depression, I would suggest getting some support such as from your doctor or a counsellor just so you know what to expect and so you don't end up having a huge relapse. All the best x