Dip to coverline 3dpo and post o temps lower than normal??

Liza

This is my first full cycle since my miscarriage and it just feels weird. From the super steady temps pre o to 4 days of positive opk and now a huge temp dip 3dpo, and my post o temps are running a decent amount lower than usual for me. Anyone have any insight? I know one temp doesn’t make a chart but I’m genuinely curious.