Oh and the cramping.... for 3 cycles after my loss the cramping was so horrible that it put me in tears. I never had cramping before in my life so it was all new to me. They were so bad that I almost went to the ER one day. It takes a while for your body to adjust. And to give you a little hope, I am pretty sure that my LP has always been 9-10 days and I have 3 teenage boys.
ps. I just came across this article, so even if your LP is 10 days you are ok!!
The luteal phase is the time from ovulation to the next period. It is typically 10-16 days in length, but it is usually fairly consistent in length for an individual woman, differing by no more than 1 or 2 days from cycle to cycle. During this time the corpus luteum secretes progesterone while attached to the ovarian wall. Progesterone is what maintains the thickness of the endometrium to support implantation by a fertilized egg. If implantation does not occur, the corpus luteum runs out of progesterone and menstruation soon follows. If implantation does occur, the implanted zygote secretes hCG (human chorionic gonadotropin), a chemical signal which tells the corpus luteum to continue producing and secreting progesterone. Luteal phase lengths of less than 10 days are considered too short for implantation to occur, and may thus indicate a problem with successfully achieving pregnancy. In such an instance, the egg may be fertilized, but the endometrium is sloughed off before implantation can occur. This condition is sometimes referred to as a luteal phase defect. If you suspect you have a short luteal phase, you should see your healthcare professional about it. Short luteal phases may be corrected with progesterone treatment.