Has anyone not been on any birth control but just tracked ovulation instead?

I'm currently on the pill but it's making me have absolutely no sex drive whatsoever.

My baby was born 5 months ago and me and my partner have only had sex once since then.

I'm thinking about just tracking my ovulation but I am worried about becoming pregnant with that method.

I have 3 kids aged 9, 2 and 5 months and we do plan on having another so if I did fall pregnant it wouldn't be the end of the world but we just aren't planning it for right now.