Faint lines confusion!!

Di

I have done testing in 5 days and day 7 after transfer. I am confused 😐. Pic 1 tested on day 5 after transfer

Pic 2 -Day 7 after transfer

I am sacred and can’t stop my running thought. All I want that my baby stick to me 👶.

Day 7 was suppose to be darker if it’s a good news but looks it it became faint. I still have cramps mild and worried.