CM questions + breastfeeding

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I’ve noticed recently my CM has been changing a ton and is a l o t heavier than usual. I am 10.5m PP, no cycles have returned yet as I am still BF 4/5x a week. Today though I noticed a lot of EWCM (negative OPKs) so I’m curious if this change / increase in CM is normal as I get closer to being a year out postpartum?