Is it possible to regularly ovulate without having AF? I know you can ovulate once without realising it (like if you are breastfeeding), but I was always under the impression that once you did ovulate either you got PG or AF arrived. So can you ovulate month after month but not have AF at all? And if you can what would that mean in terms of the uterine lining? Would there be problems with it being too thick or too old to support a baby?

TIA!