sick effecting bbt?

So i'm cycle day 70, waiting for ovulation. The past 3 days I've had a stomach bug, just feel really yucky! We've also raised the temp in our house during the night from 71 to 73 a couple of days ago.

My question is... 3 days ago my temp spiked up really high then dropped the next day and is now back up again. Is this ovulation or is this just me being sick? I thought ovulation but when it dropped back down I got confused. What do yall think?