Stay strong Nadia... I would definitely call the DOS if I were you. I know you're scared, but what you don't know CAN hurt you! If there's any issue, like your application fell into a black hole or something, you can deal with it, and if there's no issue and it's just standard processing you'll be frustrated but probably will feel better.
And yes, there's no knowing how long this will take. Some people have waited less than a week, others have waited months (even years

) But most people get through within a few months.