Ovulation Testing 😇

Caitlin
Hi! So I just purchased this ovulation testing kit. I have never really tracked my ovulation before but was hoping by doing this I would have some assistance in knowing when to BD. In the directions it states that if a cycle length is < 35 days then I should test the day after my period ends and if a cycle is > 35 days in length I should wait until 3 days after my period ends. My period ended a week ago today. Can I still start using my tests or do I have to wait until next month 😫 thanks!Â