Hook effect at 5weeks 3 days?

SM👦🏼👧🏼👼🏼🌈

So I took another test this morning because I am just a worrier. And to my dismay it is lighter 😣😭 could this be the hook effect? Or has anyone experienced this before? I am so worried I am going to miscarry now. My OB appointment isn’t until October 25th. Bottom test is from this AM. Top ones are from last week.