After you file

I filed on 4/4 with the same date for the IRS to debit my account. I received the e-mail on 4/4 that the return was accepted, however when I logged into the IRS website and downloaded my account transcript it shows the return was received on 4/15. Perhaps the 7-10 day waiting time began for me on 4/15?  I guess I have to keep waiting for the IRS to debit my bank account?