Such faint lines!!!

Should I be ordering new strips!

The colour of the 2nd line hasn’t changed all week, been testing twice a day.

My ovu date is tomorrow so presumed it would have gone a darker colour by now.

We BD, sun morn then mon night as my other half was working away last night.

Today’s is meant to be the highest percentage chance of getting pregnant, we will BD tonight but can’t see this line changing anytime before!

Can anyone advise please?