Is it normal to not have a period after a year and 8 months after giving birth? No breastfeeding no pills im not on anything

No period after baby. This is not normal. You should be having regular periods within a few weeks of giving birth to a baby unless you are breastfeeding. This could be dangerous for you. You should see your doctor to find out why.
Needs evaluation. That is a very long time to not have a period. I would schedule a visit for a basic evaluation. The doctor will ask about weight gain and abnormal hair growth. The will likely check your thyroid and prolactin hormones.