Pregnant or faulty tests?

Hey there,

I’m around three days before my period is due and I’ve tested for pregnancy the past two days and got clearly negative tests. This morning I tested and got these. Every test shows a faint second line within the time period it’s valid and all tests are from the same new batch of test I bought. Thoughts?

I’ll retest tomorrow and I’m going to test with fancier tests later this morning when they arrive. I feel like normally when I’m pregnant the tests are darker by this point in time so I’m nervous it will be a biochemical pregnancy.