hCG levels...

I am ready a lot of posts from what I assume are US women who have their hcg levels taken every couple of days in their 4-6 week period. So they can see their levels progressing, is this something offered in the UK? Or do we just have to wait until my first midwife appt at 8 weeks.
I'm currently 4 weeks and have taken a couple of tests to see my line get stronger and I have a digital I am keeping until after I'm 5 weeks to see if the predictor changes  from 1-2 (the result I got when I first found out at 3 weeks)
Ladies, any ideas?