Misoprostol question

Jenna
Hi I'm wondering if anyone has had treatment for miscarriage with Misoprostol -I had it on Wednesday, didnt have any pain relief whilst I was in hospital. Or the next day when I passed most of the tissue. Yesterday and today I've had bad pains and taken some pain medication. Should I be getting more intense pains 4 days after the drug? 
Worried that there's something left inside however I've just been told to do a pregnancy test in 2-3 weeks and to get in touch if still positive.