False positives?

So, the general consensus I got from ladies here yesterday was that because of the brand of my test, my faint line didn’t really count as positive. 🤷🏻‍♀️ FRER has been giving horrible indents lately so I went with store brand early response. The line isn’t much darker than yesterday’s but, it’s definitely pink (not sure if it translates in the pic because I used flashed but it’s pink) so I figured I’d get opinions.

Being that it’s an early response test, I would think the HCG sensitivity needed is lower than my internet cheapie strips. So I guess since those are still negative, this isn’t quite a real positive until my cheapie brand or dollar store test confirms it? Not tracking or trying so I have no clue my DPO, it could be too early for a positive on IC but now I don’t trust the line on my ER test.

Walgreens Early Response: (vfl)

Internet Cheapie: (negative)

Both were this morning with FMU, taken at the 5 minute mark. How often does HCG double? Should I be worried the line isn’t much darker than yesterday’s?