How to know my DPO based on OPK?

[Isolatedsystem]

Hi I’m trying for a baby this month, my last period was the 29th of December and my last cycle was 32 days (I didn’t measure before that).

Anyway going by all my apps I was due to ovulate on the 15th of January, but I actually had a very dark positive OPK on the morning of the 11th of January - darker than the control line! The next morning it was lighter but probably as dark as the control line. The next day after that there was barely a line.

Do you think I ovulate don’t the 11th or the 12th? I’m either 11dpo or 12dpo. I’m also a bit confused because I read that luteal phases are around 12-14 days, and my due date for my next period is in 6 days - meaning I’d be 17/18dpo! I’m guessing my cycle length must be different this month?

Not sure when to test either, I might be symptom spotting but I feel very fatigued, I’ve had some mild cramps a few nights ago, and my CM has increased!

 

[chattychar1990]

Once you get a positive OPK it’s best to count the next day as your ovulation day. So the 12th January. Do you know how long your LP usually is?

 

[xMillie]

I usually count the day after/or 2 days after opk as 1dpo. Depending on if I had any noticeable ovulation signs.

If this is only your first/second cycle using an app it could be wrong about when your next AF is due as it doesn’t have enough data to predict how long your cycle will be. - You could’ve ovulated later last month which would have given you a longer cycle.

You could test in the next couple of days if you are 12dpo or just wait an see if you period doesn’t arrive then test.

Good luck xx