Claiming educational credit without 1098-T

My son's last school year was July 2016 to May 2017, and we did make a tuition payment for his final semester in January 2017. 

Login to school account, we saw four 1098-T, and the last one was for 2016 tax year, and the form was available in January 2017. Apparently, the school made these 1098-T based on the school year.

So, can we claim educational credit for tax year 2017, since we did make a tuition payment in January 2017? And if we can, how do we solve the problem that we don't have a 1098-T for 2017 tax year?