Hi
The short answer is yes, you need to report the income.
https://www.irs.gov/businesses/small-businesses-self-employed/self-employed-individuals-tax-center
Now, since you have all ready filed your return, you will need to file a Form 1040X, Amended return to report the income.
DO NOT file the Form 1040X, until your first Form 1040 is fully processed. Filing it before the first return is processed will only create problems.
https://turbotax.intuit.com/tax-tips/amend-return/what-is-the-irs-1040x-form/L7BPCydsv
https://www.irs.gov/pub/irs-pdf/f1040x.pdf
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