Evaporation

So I took these about 5 days ago and the lines showed within 20 minutes. Yes, I know don’t look after 10 but I was busy with my 2 toddlers and forgot. I would retest but we are down to 1 truck and my husband is at work. Just wondering if anyone had the same experience with these tests and were in fact pregnant. I am 2 days late as well but I was on antibiotics so that could cause the delay.