First af after coming off pill..

Hi ladies, so after waiting a long 8 months I finally got my period back after stopping the pill in December! Af arrived on the 15/8/18 lasted for 6 days now I’m on cd 35 and no period as off yet? Have no clue if I ovulated or not as I didn’t have any ovulation tests.. should I wait on for a while longer to see if I will get af or take a pg test? Confused 🤷‍♀️ any advice x