i bought all my tests pregnancy and ovulation, off ebay there is nothing wrong with them they worked for me. Even detected the pregnancy hormone 4 days before my period was due.
i think the person i bought off was lookersgirl
Just make sure that they are not expired before you buy them, a ton of women sell their expired tests on ebay. I would just message them first to check. Although my cousin used an expired test and it worked. You can trust a positive but not a negative on an old test.