When to seek help?

How many months with no ovulation should you wait before going to the dr? I know they say 12 months under 30 if you haven’t conceived, but there’s no chance to get pregnant without ovulation?? I’ve been off the pill since March and only ovulated once (in May). I track bbt, opk and CM. I don’t want to waste my time if they’ll just tell me to come back after a year.