Please can someone see what they think.

I have a very regular 27 day cycle and I’m currently on day 31.

Yesterday I had this test on a cheap dip test from Poundland. It seems to have a line but also a squiggly bit so I’m wondering if it’s defective? I tested on a frer later but it was negative. Yesterday I had a teeny bit of clear and brown discharge then nothing. Then this afternoon I’ve had a small amount of pink discharge (v light) when I wiped.

I feel weird and spacey, bit dizzy and nauseous but I’ve got no idea what do think. Do you reckon this one was prob a faulty test?