Help. Am I pregnant??

Aby

Ok so, I’m currently 7 days late for AF. I took a test on the 2nd day of missed period and had a faint positive (1st pic below) then the following day tested negative and negative again the day after(both with clear blue) Today i woke up to blood on my knickers and when I wiped. I’m still bleeding it’s very red, a decent amount of blood on the tissue as I wipe but not as much as a normal period as I have quite heavy periods. I’ve had some cramping for a few days together with a really bad back. For the last week I’ve felt exhausted and had other symptoms like heartburn and have had very light cramps. Literally an hour ago I took another test and I’m sure I see 2 lines on that one aswell (2nd pic below) I went to my doctors Monday and he basically said to wait a week and take another test and told me it’s either I’m very early on in pregnancy or having an early miscarriage. Anyone had similar experiences and got any advice? TIA