I use oestrogel , two pumps and Utrogestan. Ive tried 200mg of utrogestan for 7 and 12 days and still only get a tiny bleed. At first my gyno said use 100mg for 7 days but I was getting no bleed on that regime. He didn't think it was a problem tho. I think utrogestan is a weak form of progesterone but has the least side effects. My gyno suggested using provero but I am sticking with utrogestan at the moment, hoping the tiny bleed is ok.