I used the Answer brand OPKs, too. They come in a pack of 20 strips. I think there must be one than one type.
really? doesn't look like it... I brought the Answer brand at walmart and it's 7 tests in it... It look like a HPT more than a strip..
That was the Answer brand.
the photo look like you are not ovulate at all... try to buy a 'Answer' brand ovulation kit... it easy to read and use.. That's what I used.. It's just like HPT.
good luck to you .