You would not have received Form 8889, it will be generated by TurboTax to be included as part of your return if you had a Health Savings Account (HSA) and either contributed to the account or had a distribution for 2016.
Check your W-2 in Box 12 for an amount reported with Code W. If there is an amount there, that indicates that there was a contribution to your HSA and you will need to go through the HSA section of your return to generate Form 8889.
Use the following steps to do so:
On the top row of the TurboTax online screen, click on Search (or for CD/downloaded TurboTax locate the search box in the upper right corner)
This opens a box where you can type in “hsa” (be sure to enter exactly as shown here) and click the magnifying glass (or for CD/downloaded TurboTax, click Find)
The search results will give you an option to “Jump to hsa”
Click on the blue “Jump to hsa” link and enter your information