I'm asking because I did a mock cycle with estrace from cd 2-8 this cycle by taking three estrace pills a day. It's CD 17 and I have yet to ovulate which is not normal for me. I have just read that some people need progesterone to re-start their cycle after a mock cycle yet my clinic did not give me any instructions to take progesterone. Has anyone needed to take progesterone to start their cycle again after a mock cycle? Thanks.