I am 4 weeks preganat and would like an abortion . i was given 400 mcg of cytotec (misoprostol) will this terminate my pregnancy and how long ?

Not Enough: Misoprostol is typically sold as 200 mcg tablets. Four tablets are recommended to initiate an early abortion, and four (or, rarely, eight) more may be required for its completion. More info here: http://www.Iwhc.Org/index.Php?Option=com_content&task=view&id=3747&itemid=614 and here: http://www.Misoprostol.Org/file/guidelines.Php good luck.