Help! Is there still a chance??

Christie • 👼🧑👦👧👼👧👼👼🤰🌈
I was so hopeful... yesterday my chart went triphasic and now today not only a temp drop but now FF isn't sure when I ovulated anymore. Is AF on her way or could I have ovulated on CD19 instead of 17 and this is an implantation dip? I know tomorrow will decide for sure but could use some input to get me through the rest of today because I've been down all day.