Ovidrel and OPK Question

PlumCallaLily

I had a CD15 ultrasound yesterday on my monitored Femara cycle.  I had one mature follie that was 2.2 (which I assume is 22??).  She sent me down to get an Ovidrel shot to trigger the follie and told me not to take a HPT because of the trigger and false positives.  I get that.

I forgot to ask her about OPKs.  I would assume they would also give false positives?  I know she said that I would release the egg between 12-36 hours after the trigger.  Yesterday morning when I did the OPK, it was clearly negative.  I had the shot yesterday at 4pm.  This morning, I did an OPK and it was clearly positive. That's when I started thinking that the OPK could be a false positive too because of the trigger.  Am I right or do I pay attention to the positive OPK?  TIA

irishbaby0708

Yes Ovidrel will give you a false positive on OPK and HPT.  

PlumCallaLily

irishbaby0708:

Yes Ovidrel will give you a false positive on OPK and HPT.  

Thanks!  That's what I thought.

tst1998

I actually like to use HPT's after the trigger until they turn negative to make sure the trigger is out of my system. that way if I (ever) get a BFP, I know it's not left over trigger. It's also nice to see that you really can get two lines on those things.

Then again, I do have an unhealthy additction to peeing on small plastic sticks.

jessican08

If you're doing an IUI, they should be doing b/w the day of your IUI to ensure your progesterone is ovulatory. The OPK will test positive even if your progesterone isn't ovulatory because the Ovidrel has/is HCG (which will turn an OPK positive).  

PlumCallaLily

jessicandavies:

If you're doing an IUI, they should be doing b/w the day of your IUI to ensure your progesterone is ovulatory.  

I'm not having an IUI - we're doing TI.

jessicandavies:

The OPK will test positive even if your progesterone isn't ovulatory because the Ovidrel has/is HCG (which will turn an OPK positive).  

Good info, thanks!

kasey9kahne

tst1998:

I actually like to use HPT's after the trigger until they turn negative to make sure the trigger is out of my system. that way if I (ever) get a BFP, I know it's not left over trigger. It's also nice to see that you really can get two lines on those things.

Then again, I do have an unhealthy additction to peeing on small plastic sticks.

OOOO I have always wanted to see two lines.  Maybe I should do it just to see it for once.