If you are using the TurboTax desktop CD/Download editions, see this TurboTax support FAQ for comparing - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-filing-status/compare-married-filing...
If you are using the TurboTax online editions, you will need to create three online accounts, one for Married Filing Jointly, another for you filing separately and another for your spouse filing separately.
See this TurboTax support FAQ for filing jointly versus separately - https://ttlc.intuit.com/turbotax-support/en-us/help-article/taxation/better-married-couple-file-join...
