Anyone use the Pregnancy test with the weeks estimator

ekc0630

I used it last week and it said 2-3 weeks.  This week I tried again and it said 2-3 weeks.  Upon research it said that if you are 3 weeks since ovulation it should say 3+.  I am 2 days past the 3 week ovulation.  Is this normal?  Did anyone else have this happen?

liz4paws

I'm was such a POAS-addict that I basically opened up an HPT crime lab while waiting for betas. I had wondfos, FRERs, and of course the CBE weeks estimator. I was getting really frustrated that mine wouldn't flip to 2-3 weeks from 1-2, had convinced myself I was headed for a m/c. So  I googled the daylights out of the CBE weeks estimators. In my research, I learned that there was overwhelming feedback that they are insanely inaccurate, the levels that they detect hcg a new level at are very inconsistent and can vary by literally hundreds of points. Mine wasn't turning when I thought it should, but here I am at 22w along. I know it's hard,  but try not to trust those things. They are really not a good indicator of anything, other than you being pregnant or not. I think they serve the fertile population better who finds out they are pregnant and wants a guestimate of how far along they are. But they just cause those of us who have definite dates and beta levels turmoil. I hope that helps you hang onto hope!

brooklynesque

The threshold for 3+ weeks is something like 2700 and you can be at 5 weeks pregnant (i.e., 3 weeks past conception) and not be quite there and have perfectly decent betas.  My beta at 5 weeks even was 2300-something so I didn't turn the stick that day.  It all turned out fine.  Try not to worry.  

absolutelymaybe

I've heard they can be fairly inaccurate. In fact, I took one with FMU the day of my first beta and got 1-2 weeks. I took my beta less than an hour later and it came back 334! That is past the 1-2 week mark. 

Mrs.McIrish

absolutelymaybe said:

I've heard they can be fairly inaccurate. In fact, I took one with FMU the day of my first beta and got 1-2 weeks. I took my beta less than an hour later and it came back 334! That is past the 1-2 week mark. 

It measures weeks past ovulation - not pregnancy weeks. Here is a FDA study about the beta levels for the corresponding weeks. https://www.accessdata.fda.gov/cdrh_docs/reviews/K112870.pdf

absolutelymaybe

The test measures your HCG regardless of the dates. What I was saying was with a beta of 334, it should have been measuring 2-3 weeks as the threshold for 2-3 weeks is 153. Unless my beta more than doubled in about an hour since taking the Clearblue test and having my beta done. 

Mrs.McIrish

Ok, understood. It sadly was correct for me in January and predicted my 2nd m/c. I was getting a 1-2 week reading in between beta 2&3 and beta came back at 150.

ekc0630

Thanks Ladies.  I figured they weren't exact but it still worried me.  I wish I had one more beta done since beta 2 was only at 524.  Its been a week since I had any blood work.  I wish I was more prepared for the worse on Monday.  Its so hard to stay positive through this when we all have been through so much heart break.  

badrianne

OP, Good luck at your U/S today.