Why did my cycle change so much!

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Does anyone have any experience with your cycle going from 24-28 range to 32 days long?! Is this normal? I had a miscarriage earlier

this year, so you’ll see a cycle length of 117 days. My hubby and I are trying to conceive and I’m getting discouraged because my ovulation date keeps changing this cycles, it was originally predicted for 5/6 and now it’s predicted for 5/11 baked on the OPK tests. Any one experience this?