| I'm on the pill, so my basal increases overall by about 15% about 3 days into a pill pack, then by another 15% about a week before my "period". My I:C goes from 1:17 off-pill to as much as 1:12 right before my period. My ISF doesn't change much though, maybe from ~70 to ~50.
You're definitely not alone- hormones mess everything up!
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Becky
T1 since 1998
Pumping since 1999
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