Line Progression

I’m currently 6dp5dt and have been testing positive since 4dp.

Do these lines look ok? I had loads of period-style cramps on the first 2 days and then a lot less (but still some) today. It has got me worried that something has gone wrong.

Do these look ok? Anything to look out for to help me spot a chemical?

Top - 4dp5dt

Middle - 5dp5dt

Bottom - 6dp5dt (today)

Thank you