Is 14dpo too late for a viable bfp??

T • Mama to a miracle🌈 6/8/21

So 5pm at 13dpo (9/13) I took a test and there’s a vfl

Well morning of 14dpo (9/14) I took another but it’s no darker than yesterday and my FRER has maybe a squinter. Super confused w whats happening!

With my last pregnancy this brand detected at 9dpo before FRER

Currently 15dpo now but didn’t test this morning because I’m worried it won’t be any darker. 😞

Original/edit/edit2/took a second test on 9/14 (14dpo)