Never used an OPK..and been using AZO! HELP

Hannah

I haven't ever used an OPK before this bundle I bought. I've always relied on Glow but it's apparent my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> is way off. Anyways.. I've taken 3 tests and none have had a line showing you are ovulating..(not sure what the line is called)... BUT I just took one and it showed up! I have been taking AZO pills for UTI pain. would this have caused the line to appear??