Worried about late period

I have been on this one pill for 5 years called Meledene but due to the lockdown and pamic buying everyone has bought it and is out of stock everywhere. So I had to get an alternative one called Mercilon. My doctor said i should be fine. I'm sexually active, at 6 March my boyfriend and I had sex. I had my period at 13 March. Now my period is late. But I have been taking the new pill like the box leaflet said. So should I be concerned or will my period ever come soon? I know I'm not pregnant, but I don't like irregular periods since I had worse irregular chaos as a kid. Also what can I do to make my period come now?

I'm a 22 year old woman