Pregnancy before tracking cycle.

Catastrophe • I love cats, 2000s FallOut Boy, science, and books. I am 28 years old and have 1 son (Nov '16) and 10 cats (!!!!)
Had my baby November 2016, so no period from March to November, but I wouldn't count post partam bleeding as a period. The app just filled in periods when I switched status from "I am pregnant" to "Preventing pregnancy". So... How can I get rid of these periods as I was pregnant, didn't have periods, and don't want these factored into the Glow formula so I can accurately track my ovulation and avoid pregnancy.