If your husband filed as Married Filing Separately, then you will have to do the same. When you file as Married Filing Separately certain deductions are limited or removed and some deduction thresholds change so it would affect both of your returns there.
If you would like more information on how it would affect your returns can you review this information Married Filing Separately vs Jointly
If you want directions on how to prepare both MFS and MFJ returns to compare, you can follow the directions below:
https://ttlc.intuit.com/replies/4775330
To switch your return from Married Filing Jointly to Married Filing Separately, you can follow the directions below:
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