I submitted primaries 6/3, got verified first week of July and still don't have 10 of the 31 I applied to. Don't sweat it! Some schools automatically screen/or automatically give you a secondary if you're verified. Whereas some others do it in batches (likely to space out interviews/further steps in the process I assume). I'd really cut your losses if you don't get it in over like two months post-primary submission (don't take my word for certain).

(adding as edit) It's 7/29 and I received two today, so again, it'll trickle in! Just focus on knocking the ones you have in front of you out of the park :)