Question about line progression/FRER

I am about 13-15dpo and I have been getting faint FRER....definite squinters and usually takes at least 5 min to show.

With my first pregnancy I was getting really strong bold positives at this time. The lines would show up instantly and were blazing with colour.

I have missed my period so it’s not like I’m testing early.

Here’s the test I took this morning.

Is this normal?