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Ttc baby 1

$Jeny$ • Tue, Apr 21

Hi, this is my second cycle trying and using opk I am always regular. My average cycle days are mostly 31. Last time I had a postive on cd17 and peak on cd18(March). Now i am on cd 18 and still no positive. Does ovulation chnage every month? If yes, I am worried on how long it will take for my positive. Please share your experience