Ho long after a positive OPK should your cycle start?

My cycle is irregular. It ranges from 35 days to 45 days. This past cycle started on June 4th, and I had a positive OPK on June 30th and July 1st. I am wondering when I should expect to start or when I can take a pregnancy question paper? By the way, I am trying to conceive...
Answers:    Thats odd! My lmp was on the 4th of end month 2! An ovulation calendar said that my ovulation period was between the 16-21, I guess those were the days that I be expected 2 b the most fertile on. Well 2day is the 15th of july and still no period. Theres a lil catch tho my period r irregular 2 so Im not sure if Im pregnant or if my interval is stalling. I havent tested yet bc I so afraid of getting a BFN!

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