Doesn’t look good 🙁

So I got bfp a week ago today. I had other tests so tested every other day and I noticed lines weren’t getting darker just the same. I started getting pain in right side the last 2 days so I’ve had a transvaginal scan to rule out ectopic and they can’t see anything that would suggest I’m pregnant either in tubes or womb. Hcg 55 😥 I have to go back Thursday but it doesn’t look good.

Anyone been in similar position. Anyone had low hcg at 4w 5days ?