Anyone

I'm over 2 weeks late and on day 46 of my cycle. I took two rexall brand tests a week ago. They both appeared negative but when I looked at them the next morning they were positive. A couple of days ago I took 3 First Response and they were all negative. Since the rexall were positive the next morning does that make it positive or evap line? It appeared positive on both tests. Also, could the First Response be faulty? I found over 15 reviews stating that they had false negative with the new comfort grip first response tests. I just need to know if anyone has been through this. I would like input before spending more money on tests and a doctors appointment. Thank you!