Chart is jacked up this cycle

My 3yr old has had the flu an I haven't been able to temp like I'm suppose to. I think that I'm a few days past O because I usually have a big dip in temps before O. thinking I O'd CD20ish and I'm 3dpo. Any opinions, anyone see something different? Also think my temp was so low this morning because I slept on the couch with my toddler, I kept waking when he would have a coughing fit. Should probably disregard it but my chart is already missing so much. 
Here's last cycle's chart where you can see the dip before O.