No, you are not required to file as married filing jointly and include your husband's income on your return. You also cannot do so without amending his return since he has already filed as married filing separately. However, there are some disadvantages to filing as married filing separately. Please view the TurboTax FAQ below for more information.
https://ttlc.intuit.com/replies/3288477
[Edited 03/19/2019 I 9:52 PM]
