Does anyone have any information on this? I've heard that a short follicular phase (less than 11 days) can make conceiving harder and the chance of miscarriage higher. Because this is the phase where the egg matures, if this phase is too short you will produce an immature egg. I had a miscarriage a few months ago and noticed that my follicular phase is no longer that 10 days, sometimes 9. We want to start trying again, but now im wondering if this played a role in my miscarriage. Just the thought of possibly miscarrying again is driving me insane.