Metallic taste in my mouth ???? Anyone experienced this before ??

Thlyaa

Okay so idk if I’m tripping but today I woke up with a metallic taste and a weird feeling in my tummy.. my last period was shorter then usual. But I know it was a period. So I doubt im pregnant but check out my calendar I’ve had sex after my period I just didn’t log all days I forgot to. But I’m having minor cramping and coming and going and I’m a little nauseous.. I even have a stuffy nose. Is this app accurate with ovulation??