Bleeding after Misoprostol (the second abortion pill) is usually heavier than a period and is accompanied by clots. The heaviest bleeding typically occurs 2-5 hours after using Misoprostol and usually slows within 24 hours. Some women may pass clots days or even weeks later. This is common and is not dangerous.
The bleeding is considered to be too heavy if you soak through more than two maxi pads per hour for 2 hours or more, or when you pass clots bigger than an orange. In these cases you should seek medical help.