HELP! FRER test?

Hey ladies! I need some advice/answers.

I’m currently 8dpo & have 6 days until my period. I know it’s still early. However, I took a wal-mart cheapie this morning. Was negative. I then, at 5:30pm took a FRER. Within 3-5 minutes I started seeing SOMETHING. Was super faint, like SUPER. But it’s something I’ve NEVER seen on any of my other tests in the last 13 cycles. It had a tiny, teensie bit of pink in it. But definitely not dark enough to show y’all a picture. (I tried) But everytime I picked up the test I could spot it right away.

Now, if I am pregnant. How many more days until that line is actually visible without questioning it?

•Should I test tmrw morning with FMU?

•Should I wait 2-3 days to let HCG build?

What are you recommendations and experiences?

Thank you SO MUCH! ♥️

Please lord, let this be it! I would be SO HAPPY and excited to share the news with Hubby. Especially since his birthday is on July 17th! PLEASE, oh please, PLEASE! 🙏🏼