I'm a bit concerned because I took mifepristone and then 24 hours later, I followed it up with 4 tablets of misoprostol, just like my gynaecologist told me to. But I've only had a bit of spotting for a little while and then no bleeding at all, just some cramps and nausea. It's been over 21 hours since I took the misoprostol and I'm worried that it might not be working. Can you help me understand what's going on or what I should do next?