Am 42, have a 3.5 year old ds, ttc #2. Regular periods, which, since returning after ds' birth, have been heavy for a couple of days, stop for a couple of days, then return as very dark brown. The clots have been getting bigger and this round were VERY big - is this hormonal? What does it mean? We've had lots of tests, as we're heading towards ivf, and they can find nothing wrong. I'm convinced there's a hormonal imbalance, and am hoping someone can point me in the right direction to get this sorted. Or, tell me that it's all perfectly normal, and not to stress about it.