It is unknown exactly when the IRS started reviewing tax return data to start processing the stimulus payments. However, the stimulus payment is an ADVANCE on a credit for 2020. That means even if you do not get the stimulus in 2019 due to your filing date, you will receive it in 2021 as long as you otherwise qualify. 

Also, the IRS is rolling out the "Get My Payment" tool in mid April. According to IRS.gov, you can use the "Get My Payment" application (coming mid-April) to:

• Check your payment status
• Confirm your payment type: direct deposit or check
• Enter your bank account information for direct deposit if we don't have  your direct deposit information and we haven't sent your payment yet.

Update your information

Direct deposit: Use the Get My Payment application (coming mid-April) to let us know your bank account information if we don't have your direct deposit information and we haven't sent your payment.

Check payment: If you moved since you last filed, let us know your new mailing address.

Do I get a stimulus check if I just filled 

Yes,

https://www.irs.gov/coronavirus/economic-impact-payments

Go here to - Filers: Get Your Payment

@CatinaT1 I'm confuse. I used the "free Stimulus Registration for non-tax filers" here on TurboTax which automatically filed a 2019 Tax Return on Apr 4th. The status of the return is Return Received on the IRS website, but it hasn't been approved yet. Am I too late? I'm worried that if the IRS doesn't approve my Tax Return I won't get the stimulus check and I don't know how long they take. Do they even have people working and reviewing 2019 Tax Returns that were sent recently?

hi there in the same predicament.  i got an update that irs has accepted my taxes. only problem is im not getting a refund so i wont be able to put in my direct deposit.  i owe like $15. i dint do my 2018 taxes so do i have any options.