No, you don’t need to send your transcript in first. You can go ahead and get started at your convenience. The truth is, we don't really need to see you transcripts at all! This is because it is ultimately just your district office that needs to know that you have enough courses.
The only reason we need to see your transcripts would be if you need help figuring out which classes you need to complete your credentialing requirements. If you are bringing in courses from multiple different schools it can be confusing to know what classes are equivalent to which.
If you need help knowing which courses to take, you can request a transcript audit following the prompts here.