Scared after 6 days after transfer and got negative

Hello laddies , maybe someone can help ease my mind 😔

Today is day 6 after my FET , I took a test on day 4 and there was 2 lines one was faint , and day 6 I took a test this am and today (day 7 ) they both said negative with no faint lines .. but the one for day 6 looks kind ofv faint . I’m not sure ..

I could be testing too early.

This is my 2nd IVF , & I took a test 6 and 7 days after transfer & they both were positive …

But this time I’m not sure … please help ladies ..