Hey ladies. I have a question for all of you’s who have used FRER and first response rapid test.

My FRERs are so light it’s barely visible but there- but I took a first response rapid test- and it’s a darker faint pink line. Digital is negative (triple check box) I’m so confused! I messaged my OB for a blood test but I’m wondering if anybody else has experienced this? The rapids aren’t supposed to be more sensitive than the early result but yet it’s coming out darker? And even blue dyes are darker positive for me. I don’t get it and I haven’t been tracking so no clue how many dpo I am.