How Accurate Are The First Response Ovulation Test Kits?

posted 5 years ago in TTC
Post # 3
Member
1041 posts
Bumble bee
  • Wedding: September 2013

The OPK tests are only good for about a 12 hour window.  So if you tested out of the window, then it will give you a negative.  (Some boards recommend women testing both in the morning and in the evening to not miss the peak.)

Post # 4
Member
1660 posts
Bumble bee
  • Wedding: January 2012

Not sure about the OPK’s, but I do think you should start charting your BBT just so you can get an idea of when you’re ovulating.  Not everyone ovulates at day 14, and you don’t always ovulate at the same time every month.  Charting would help that and taking a BBT is a basic way to get an idea of whats going on inside your body without obsessing (since you won’t know you ovulated until after it’s happened).

Post # 5
Member
1096 posts
Bumble bee
  • Wedding: June 2011

I was using fertility friend to track my period and determined I had 32 day cycles but when I got the clearblue easy fertility monitor I realized I was ovulating later than average So FF was not giving me accurate days. If you have a 28 day cycle and FF predicts days 14/15 are your fertile days that’s only an estimate based on averages. Using some sort of ovulation kit or tracking your temps and CM will be much more accurate because it’s based on your actual body and hormones.

Post # 6
Member
331 posts
Helper bee
  • Wedding: July 2010

Every person is different. I don’t usually ovulate till closer to day 18, so I’d get a negative on day 14. I also have long LH surge (what the ovulation strips are testing for), so I get positives or two or three days, Some women only have a 12 hour window in which they get positives. If you really want to know all the details, Taking charge of your fertility is a great book. If you want to keep it simple and not get into all that, then just plan to BD a lot!

Post # 9
Member
331 posts
Helper bee
  • Wedding: July 2010

@Mrs_Amanda:  You can try the wondfo ovulation strips from amazon. They’re really cheap and basic, no fancy plastic case, just the test strip. You look for the test line to be darker than the control. Anyway, id get those and use one a day in the afternoon, starting from day 8 or so (counting from the first day of your period) till you get a positive. Thats usually a day or two before you ovulate, so BD that day and the next two. 

Anyway,that’ll give you an idea when you ovulate without doing all the charting (though I think it’s great, I know it’s not everyone’s thing). If you do the ovulation test strips for a few months and it’s consistent, then you should get a pretty good idea of when you ovulate so you can better time BDing.

Post # 9
Member
3 posts
Wannabee
  • Wedding: April 2012

I just got a pisitive opk test. Husband and I had sex two days ago. Is that good timing? I got a negative opkthe morning after we had sex.

Erin

Post # 10
Member
899 posts
Busy bee

We got pregnant the first month we used them – so they worked for me! I had a positive test for 2-3 days, which apparently is not uncommon. They helped me because based on my cycle length, I thought I was ovulating earlier. Not that I had a lot of info to go off since it was only my 3rd cycle off BC. I’ll be using them right away when it comes time for baby#2!

Post # 12
Member
899 posts
Busy bee

erinstargazes:  I tracked it so I just looked back in my app… We BD’d the day before I got the first positive, the day I got the first positive and then the next two days as well. I had to be one if those 4 days that did it! 

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