The IRS doesn't share your tax information with us so we can't tell you if you're going to get the stimulus check for your son. However, the IRS has not finished sending out stimulus payments.
If you're eligible for the second stimulus check and you haven't filed a 2020 income tax return, file it and claim the Recovery Rebate Credit. See How do I claim the Recovery Rebate Credit in TurboTax?
If you did file a 2020 income tax return and claimed the second stimulus, keep checking the Get My Payment to see the status of your stimulus.
If you filed a 2020 income tax return and didn't claim the second stimulus, you'll need to amend it and claim the Recovery Rebate Credit.
To be eligible for the second stimulus payment, your adjusted gross income (AGI) is below,
You should receive $600 per individual plus $600 per qualifying child.
For filers with income above those amounts, the payment amount is reduced by $5 for each $100 above the $75,000/$112,500/$150,000 thresholds. This means:
You can find your 2019 AGI on line 8b of your Form 1040.