Still hopeful?!

Normally AF is due every 4th Sunday. According to that today AF should have came. But FF changed my day with my ovulation input to tomorrow. Here is my chart for the month. What do you all think? The last two days temps are not accurate. I took it 3 hours late on Saturday and 2 hours late on Sunday. Both nights I was at the hospital very late and didn't get it to bed until 3/4 am. So I reset the alarm so I got atleast 4 hours sleep. I know that last dip doesn't look good. But I thought with the inaccurate temps maybe I still have a chance.