Probably for about 4 months.
This sounds like what happened to me. When I went on Alesse, about 2 weeks in I started breaking out everywhere and I also thought it was getting worse before it was getting better. But I was breaking out in places that I never get acne and it didn't seem like a normal initial break out so I ended up switching to Diane after I finished the first month of Alesse. I also found out that Alesse, like Lutera, is highly androgenic and one of the worst pills to go on for people with hormonal acne. Diane on the other hand is highly estrogenic and one of the best for acne.
I had an initial break out with Diane, but nothing to the degree of Alesse. I would consider it a bad breakout...but not the worst acne I've ever had. So, in a sense it gets worse because you get a pretty crappy break out when you first start, but it shouldn't give you the worst acne of your life. You should definitely considering switching!
How long was your initial breakout on Diane?
4 months until you were completely clear? Or 4 months to just stop the bad breakouts? When did you see the slightest improvement
Um, it would steadily decrease in severity over the course of 4 months. I saw improvement with each successive breakout because my skin would look better but then in a week or two there would be another breakout. It took me 6 months to see consistent clear skin.