You should have received an email stating whether your returns were accepted or rejected.  You can also check the status of your e-filed returns. Your returns must be accepted to check the status of the processing of your return & refund. 

How do I check my e-file status?

https://ttlc.intuit.com/community/return-status/help/how-do-i-check-my-e-file-status/00/25538

The IRS states that nine out of 10 e-filed tax returns with direct deposit will be processed within 21 days of IRS e-file acceptance. Mailed paper returns: If you filed a paper return, please allow 4 weeks before checking the status. Refund processing time is 6 to 8 weeks from the date the IRS receives your tax return.

You can checked the IRS website Where's My Refund for your information?

https://www.irs.gov/refunds

Also, see the following from the IRS for refund information.

2020 Income Tax Refund Chart Shows When You'll Get Your IRS Refund

https://www.cpapracticeadvisor.com/tax-compliance/news/21121511/2020-income-tax-refund-chart-shows-w...

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If you have a State refund, click on the following link, then click on your State

https://ttlc.intuit.com/community/refund-status/help/how-do-i-track-my-state-refund/00/25571