No line progression !!

Catriona

I got my first faint positive on 1st March , now 6 days late for period and lines are still super super faint!! I only get lines like this if I use FMU ... what is going on? I’m booked in on Monday for blood work as I know for a fact i am pregnant l - I am exhausted, I have awful acne (not normal for me) I am totally craving salad 🥗 ((very strange) been cramping mildly for about 3 weeks now, having waves of nausea, I think the worst is the tiredness tho. Has anyone experienced the same and gone on to have a normal pregnancy? I am really concerned it could be Ectopic. These two tests were taken this morning on FMU .