Is this normal?

Brianna • Mommy to two 👼🏼 ~Oct 9th 2018~ ~February 15th, 2019 ~ TTC my rainbow baby. 🌈👼🏼 Married to the love of my life. 🥰💖

I usually have pretty regular periods. I was on the birth control pill for probably only about two or three weeks before we said screw it lets try to have a baby! So i got off of it. I had just light spotting which i thought was implantation bleeding but it wasn’t, then i didn’t have a period for a whole month until this month and this period only lasted three days. What does this mean?!