Could í be pregnant or is it in my head?

So according to another app í have í should of been on my period on the 21st but according to this app í won't be on it till the 24th. I haven't got my period yet and don't have any of the usual cramping í get before my period starts. My face is super oily this week and that's not normal at all. I got off birth control manjar 19th. We only been TTC for 2 month but í really want to be pregnant my husband want a baby really bad too. Maybe I'm over streesing this out.