Ovulation kit question?

I only have 5 test sticks, I need to know when to start checking? my last cycle i ovualted on day 10 when i went to my ob. now i bought the kit so when should i start checking? day 10 or before? although i have 29 or 30 days cycle and before sometimes i ovualted day 12 like from 2 years ago
thank you

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Answer:
I ovulate earlier too, and i start testing around day 8. You want to make sure you are testing early enough to catch the LH surge, which usually occurs 24-48 hours before you ovulate. If you test ON the day of ovulation, you test will be negative. Also, try charting your BBT, you’ll learn what days you ovulate. I have charted for 10 months and always ovulate between day 10-15. My cycles are always 25-29 days long. It really helps you get familiar with your body!

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Answer:
How did you know you ovulated on the 10th day? I am asking because I’ve know clue when I ovulated this month. Today is day 16 and I tested day 13 and 14 and both just plain light lines. You have 5 tests so if I were you I would on day 11. If you begin on day 10 then you r last test is on day 14. I think you should test on day 15. Iam pissed I’ve know clue when I ovulated and I just bought 7 tests this day and it's to late. But I did have sex on day 14 so I’m praying. I did one just in case and it was negative. So for next time I will have 6 tests and I think like I told you I will begin on day 11. Actually I’ve one more then you so maybe I’ll start on day 10. Yep you should begin on day 11. Good luck i will keep my fingers crossed for you and you do the same k? LOL

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Answer:
well i begin using them from cycle day 10 and test between 10am-2pm
i got my positive 2day on cd16.:)
you can also get cheap ovulation tests from ebay thats where i get mine from i got 40 for for 4 quid and they’re really simple to use
good luck :)) xxx