I have a question about yaz (birth control pill)

Ok this is gonna be long lol, so I just started taking yaz I switched from my other birth control, and on yaz there’s only 4 days of the placebo pill, on my old birth control usually I would start my period after 2 days of taking the placebo pill, if that’s the case this time will my period end right when I start taking the actual pill again or will it still go on once I start them again, Bc if it didn’t that would mean I only have a 2 day period which doesn’t really seem healthy