Questions re: BBT Consistency + Cover Lines

Ch

A few questions...

BBT Consistency: This is my second month tracking BBT. Last month my luteal phase was within .01°. This month my luteal phase temps are a little all over the place. I'm temping within 45min of same time daily (with a toddler waking me up it fluctuates a bit)

Cover Line: Have you ever gotten a cover line on Premom/Fertility Friends and NOT Glow?