Need opinions.

I have been having periods every 2 weeks for the last few months. Went to dr, they did a pregnancy test said negative but when doing my pap they said my cervix was having a hard time opening or they were having a hard time getting to it. I remember thinking weird. Anyways, 2 weeks later I’m dizzy, nauseous don’t feel right at all. Can’t eat. So I have a feeling to take a test. The darkest 2 lines I’ve ever seen. And this is #3. Like the test line was darker than the control line. Wondering if I’m further along? So confused with dark lines like this why it didn’t show up 2 weeks before at the doctors. Anyone had anything similar? How far along did you end up being?