Slow rise—BBT chart help

Natalie
I'm not usually a slow riser, but it looks like I have been for my past 2 cycles (right after a miscarriage). The first picture is my chart last month. I'm counting my first cycle day as Dec 7 since that's when the mc was complete. That cycle was 31 days, it's usually 29 days. The second picture is this month so far. What do you think? When did I ovulate?? Thanks for the help!