Need your help ladies

ge

So I got my bfp 2 days ago and started bleeding I went to the EPU and they confirmed I was pregnant but my beta was only 20 !

The bleed was browny red like the beginning of af

Nothing on my pad just drips on the toilet when I see and on the paper when I wipe

BUT my tests are getting darker !!

I think I know what’s happening but have any of you had a positive outcome