(Closed) Need your expertise — Wondfo & Clearblue OPKs

posted 3 years ago in TTC
Post # 2
2427 posts
Buzzing bee
  • Wedding: April 2014

cbgmtx :  Sort of. An OPK only detects a surge in your hormones. The Wondfo specifically test for LH surge, which typically shows that your body is about to release an egg. However, it does not by any means confirm ovulation will take place. An LH surge can happen without ovulation following, most specifically with women who have PCOS or hormone imbalances.

If you get a positive OPK, then the surge predicts ovulation should happen within 12-48 hours following. The only ways to actually confirm the surge also releases an egg is to BBT or have bloodwork/ultrasounds.

So if you have a positive one day and a negative the next, it does not confirm anything happened other than a surge in your hormones. 

The clearblue digital actually tests two hormones: LH and estrogen, and gives you the flashing or solid smiley based on the rise in these hormones. I wouldn’t necessarily say they are more accurate than Wondfo, especially if you have a normal cycle.

Post # 4
364 posts
Helper bee

I used Wondfos and CB Digital last cycle and this is my experience:

I got a solid smiley on the CB Digital and +ve on the Wondfo on Sunday night, CD12. I also temp and confirmed that I ovulated on Wednesday, CD15.

From Monday until Wednesday, I was checking with the Wondfo and CB Digital, twice a day, morning and afternoon. Monday morning, CB Digital was negative, Monday afternoon it was positive.

So I did a bit of research, and apparently, the CB Digital was showing a negative because there was no LH surge detected (the CB Digital actually registers your LH internally, which is why you can never re-use them, basically throw them out once the strips are gone). So my LH increased on Monday night, and Tuesday night too.

Also, there’s a difference between the CB Digital and CB Advanced, I read somewhere that only the Advanced Digital measure estrogen, but I could be wrong about that! So your best bet is to temp as well. Good Luck 😉

Post # 5
3173 posts
Sugar bee

When I conceived, I tested with Wondfos 2x a day. On CD13, I tested in the morning and got a negative, and then tested at 5 PM and got a positive. Using the every other day thing, we didn’t have sex that night because we did it the night before. I tested in the morning of CD14 and it was positive, so we had sex that morning. By the afternoon, it was back to negative. I got a positive pregnancy test on CD27. 

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