You should be entering in the Sale of Your Main Home section since it was your main home when you sold it. Since you never rented out the property, the depreciation recapture does not apply. Make sure that you answer NO to the Did you take a home office deduction or rent out all or part of the home? question.
You may need to delete the sale and re-enter it if you have made changes. You can look on the Home Sale worksheet in Forms mode to see the calculation. There is a limitation based on non-qualified use of the property, but only applies to the 5 year period before the sale of the home. See the excerpt below from Publication 523 (page 15).
Determine your non-qualified use gain. Complete this section only if there is a period, after the year 2008, when neither you nor your spouse (or your former spouse) used the property as a main home, and that period of non-use occurred during the 5-year period prior to the date of sale and before the time when you or your spouse (or your former spouse) used the property as a main home.* The question regarding home many days of non-qualified use determines the limitation on the excludable gain. You only need to include the days when the house was not the primary residence during the 5 years prior to the sale. If it was sold in 2020, the 5 year-period started in 2015. So only enter the days between that date in 2015 and the day in 2017 when the property became the main home. The limitation percentage (non-qualified use/total days owned) should be very low in your case.
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