Do I really need a blood test?

My mother in law wants me to get one but I don’t think it’s necessary.

I took a test and it came back with a faint line but also dye run. It was covered in pink dye so I was a tad eh about it.

Took THREE more test within a couple days and all negative plus a digital negative

And I started my period today.

I told her I was going to go but then I got my period and I don’t have insurance TODAY WAS THE FIRST DAY WITHOUT INSURANCE. It ended today!! I’m on a new quest to find a new insurance so I don’t want to go in and get billed if I’m positive I’m not.