Continued to file jointly while my husband has already filed and got refunded by filling as married separately

Hello,

I am married, have two kids , and am a first time filer. My husband and I are new and didn't know a lot about the difference b/t filing separately or jointly. He has filled as married separately in his 2021 tax return and got already a refund.

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A continuation to the above question: -

Thank you so much for your swift responses! I have started filling jointly. I am filling in my and my husband's information via Turbotax. My husband had filled separately via another system (via EZtax), he is planning to amend it (change to Married Filing Jointly) tonight or tomorrow from his end. I hope we are not violating any rule by keeping on filing and submitting mine. Thanks!