When did I ovulate?

Kaci • Mommy to Kooper Thomas(7.9.13) and Karlyn Sarah(3.29.17) Aunt to my "first" baby Elijah Jayden(5.5.02)
Today or tomorrow?? I had smiley face opk yesterday morning, yesterday evening and this morning, then no smiley face tonight. I nodded a temp on the 12/19 because my battery went dead.