Hello
Thanks for your query.
AM glad that the procedure has been carried out under medical supervision.
The 
pregnancy should have been confirmed by 
ultrasound, and dated too, otherwise complications such as severe bleeding, failed procedure, infection etc can result.
Also, ideally Mifepristone tablet is taken orally, and then 
Misoprostol 4 tablets are given vaginally or orally, so the instructions given to you are correct.
Regarding side effects, common ones are 
nausea, fever, pain, cramping, severe bleeding and possibility of failed 
abortion.
You can have a baby in the future, risks include severe infection, damage to to the lining of the uterus, and blocked tubes due to infection.
Take care.