PreKnow 50 Ovulation Test Strips and 20 Pregnancy Test Strips Combo Kit (50 LH+ 20 HCG) (2021 Latest Model)

My wife and I have been trying to get pregnant for the past few months so we thought ovulation strips might help. The price looked good, others seem to have good results, and not really sure what the difference is between brands we gave this product a try. My wife just followed the instructions and it's been working for her. It showed her peak ovulation this month was early this week. Feeling pretty good this might improve our chances of her getting pregnant soon and hopefully we don't need to do anything more involved.

I have been testing for a while and haven't got any positive results maybe bc i am still breastfeeding my 11months old 4 times a day. Tonight, I decided to test again, and finally the LH surge shown up. The positive result shown up very fast within 3 mins as you can see from the picture I took; the background still hasn't cleared up yet at 3 mins, but already shown very positive. I guess the recommendation of testing at noon dosen't work for me.

Update: this company has excellent customer service. They are helping me to find out why mine didn't work. I've see the pictures of thier product testing. And they honestly look exactly like what i wanted. Im stumped. But they gave me a full refund unsolicited! So they really aim to please. I hope to update with a reason to what went wrong soon.I have tested many many opk brands. My favourite is not available now. But these looks like they were the same. They are not. And I almost missed my surge because of them. Not one test was positive.1st picture is all the preknow brand cycle days 13-172nd picture I took another test cycle day 17 eve because the 1st was so close. And dipped my favorite test (choicemmed brand top) (preKnow bottom) my favorite, tested and trusted brand is clearly positive! While this preKnow brand is negitive!Picture 3: cycle day 18 my trusted brand (top) is just under positive. Surge is over. And preKnow negitive.Conclusion you will miss your surge if you use these tests. They suck. Honestly I wouldn't use these tests if they were free. I am very sad my favorite got replaced. But my second choice is iproven. Read right @ 5 min they are very accurate and well made.

Purchased this product on Aug 4, 2023 and received a damaged box with expired test strips.

It is very easy to use and very sensitive，I just collected very little urine and get the strong positive result. and in order to make sure, I buy an other brand one from supermarket, that one is fast too, but the line very light，so I went to see my doctor and make a test in the clinic, and get the positive result too.

These strips work great. I have been testing with these strips for 10 days. I started testing earlier than what the instruction suggested cuz I want to see progression. Anyway, I finally got a positive result this noon. I immediately peed on my clearblue digital OPK stick after getting the positive PreKnow test result, it gave me a firm smiley face. The PreKnow tests are as accurate as my digital ones. Great buy!

I have regular cycles and I BBT chart. For the past 2 cycles, I have had clear temp shifts, however, I have used these OPK tests and not a single positive has shown...I'm beginning to think they are defective based on others saying the same or that they have had all positives....

Value was good. I am irregular and on infertility medication. The ovulation test have not worked for me. I have had a positive result using a clear blue ovulation test for last 3 days and this one when tested is a negative every time. Have not tried the pregnancy strips that are included yet.

Funcionan muy bien

El mejor producto que he tenido, me evito gastos inútiles en pruebas de farmacia y más eficaces el producto en su fecha de caducado muy bien me daba 1 año las probé antes de ser fértil las de embarazo y no marco nada cada mes las usabaEste mes me embarace y marco desde 5 días antes la ovulación me la marco en el día que era exelente

Las tiras son de excelente tamaño, muy cómodas , haría falta las tapitas recolectoras sin embargo son de buena calidad.Le doy 3 estrellas porque venían CADUCADAS!la caja tenía una fecha de 2021 y los paquetes de AGOSTO DE 2020Súper mal ! Revisen antes de realizar sus pruebas ... cabe mencionar que ya realice devolución y me reembolsaron , bien ahí!

Llegan casi caducadas. Que feo vendedor

Funcionan, estoy embarazada.