Ovulation question.. new to this

Husband and I have been ttc baby #2 for almost 6 months now. My period returned 3 months ago. I began using opk strips this month to figure out when I’m ovulating because I don’t think I am when this app is saying that I am. For example, it predicted I ovulated yesterday. But I have been taking opk strips for 4 days now and haven’t really seen a spike? This morning I noticed more cervical fluid but the test I took still doesn’t show a spike. I’m going to continue to test every 3-4 hours today to see if it gets any darker... This would be CD 14 btw & I typically have a 25/26 day cycle. Do you think I just missed it tracking? Or do you think I have not ovulated yet? Any advise is truly appreciated!! I’m so confused by my results & what the app is predicting...
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