Ectopic?

Around 4+4

Slight left shoulder pain more so on top of s. No other symptoms. This was a dull pain and comes/goes. Seemed to start last night.

Miscarried in Feb. I want this more than anything but the anxiety is overwhelming.

I booked a scan for when I'm 6+2 but that's still ages away.

Is there anything I can do to check if it's ectopic at present?

Why are things never easy?

Would a hcg draw help?

Thanks in advance