Just got off the pill/TTC

I’ve been in the pill for almost 3 years. Recently my husband and I decided we want another(we have a 5 year old daughter) so I went off the pill a week early. I took the first 2 weeks and stopped. I took my last pill on Saturday, got my period Tuesday evening and it’s Saturday today, and my flow is next to nothing so I’m assuming it’s coming to an end. I don’t know why I didn’t just finish my pack, but I’m wondering if it’ll cause my uterus to be confused and my cycle could be irregular because of that? (I’m 25 years old with a past of regular cycles)