How long does breakthrough spotting last?

Dianna

I am on Aygestin which is similar to the mini-pill, but my dosage was lowered from 10mg to 5mg on Saturday. Yesterday afternoon I noticed I started spotting very lightly but it stopped, until a few minutes ago. But again it's pink and very very light.

Leading up to today I had off and on watery CM with some creamy CM, but yesterday and Wednesday were the first time when my lower abdomen was not sore or bothering me since my surgery.

I just wonder if this is something I should let my doctor know about or if I should just ride it out because it's breakthrough bleeding.