Don't get too bog down in the digi's hun, i was convinced it was over as i was 5+5 and still getting 2-3. I even rang the EPU but it was a bank holiday as I was convinced it wasn't progressing. I bought one more pack Monday evening and it changed to 3+. I'm 6 weeks today. I was using those cheapy tests as well and I found them good but the line did vary greatly depending on wee concentration.
I don't think I will ever use those digi's again, the unnecessary stress they caused me was unreal!
Hang in there and hopefully you get some good results soon xx