What happens if im not on my period when I should be taking the fake BC pills?

So I just started birth control this past month, I'm taking Alysena 28 so there's 21 real pills and 7 reminder pills to take when I'm on my period. The directions said to either start the pills On a Sunday or on the first day of your period, so I started on my first day of my period. Now I only have one pink pill left until I start the white ones but I don't think I'll be getting my period this week (and eve says the same thing, I shouldn't get it till the 21). What do I do? Should I take the white pills anyway and then just start a new pack? I'm very confused. Not sexually active at the moment so I'm not worried about getting knocked up right now but I'm just worried about messing up the pills or whatever. Please help!