Per @KarenJ2 you need to count your days present in the U.S. per the Substantial Presence Test. What was not told to you is that when you are here on a F-1 Visa, you cannot count the days present in the United States for part of 5 calendar years. If you came into the United States in 2014 or before, you would be considered a Resident Alien for 2019.
You are not able to start counting the days present for the Substantial Presence Test until you obtained your H1B Visa
If you came into the U.S. after 2017 you will need file a Form 1040-NR in 2019. TurboTax does not support Form 1040 NR or Dual-Status returns. You will need to use Sprintax to file a Form 1040-NR and the Dual-Status return. If you have questions you can contact Sprintax Help for assistance.
If you did come into the U.S. in 2014 you can file as a Resident Alien in 2019 and file a Form 1040. To make the election to treat a nonresident spouse as a resident alien see IRS Publication 519 page 9 to see what is required on the statement that you need to mail with your return.
Edited 02/24/2020
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