Worried it’s not progressing

Hi everyone. I’m due my period tomorrow and I took a test yesterday (top one) and bottom one today and I feel as if the line still isn’t dark?

My other pregnancies by now the line was super dark and this time not? I’ve had a lot of cramping which I didn’t have previously and I’m just concerned this pregnancy won’t stick.

Anyone still had faint-ish lines the day before AF and gone on to have a healthy pregnancy? Thank you!