I’m scared

Monday the 20th of march I took my bbt and it was 36.72 the next 5/6 days it was between 36.5 - 36.6

I took a pregnancy test on Friday the 31st of march and it was negative. However I did test early.

On Sunday the 2nd of April I started spotting. I thought it was AF but the spotting kept happening on and off got 4/5 days. It was pink, then brown, pink then brown and so on. The spotting then stopped for a week and it came back.

I have been spotting ever since, some days it’s light and I don’t need to wear a pad, some days it was heavier and I had to wear a panty liner, but no where near heavy to say it was like a period.

Over the past couple days it’s got progressively worse, the bleeding is heavy for a few hours then stops again. I’ve also noticed I’ve got pains (not cramps) radiating along the left side of my pelvic area and down my legs. I’ve also noticed some stabbing like pains in my left shoulder. Again all connected on the left side.

I called the doctor who told me to take a test to rule out pregnancy, but I haven’t been able to take a test yet as none of my local chemists have tests. I feel so sick I’m scared what’s going on. Pls help???? When I’m googling it’s saying ectopic pregnancy???? Why was my temp so high on the 20th of march.