What kind of period is this?

Me

My period has came every month since i had my son since July 14th, 2017 until January of this year 2019. I have had an period in January, February,March. Missed April period but had an period in May, June. Still no Period for July and i am over due. I also been getting bacterial vaginosis recurring since my son was born and my doctor and obgyn doctor keeps prescribing me flagyl the gel kind. I want to have another baby but if i have irregular periods then it would be hard. I don't won't to get on birth control to help with my periods to come regular. I have heard so many bad horror stories about birth control.