Have any of you sustained a pregnancy with having a short Luteal Phase?

My LP is 7-10 days. I concieved my first son with a 10 day LP. I am now 13 weeks pregnant with my 2nd. When I concieved this baby it was during a 7 day LP...so it was kinda hard to believe that "it stuck". I was about to start taking 100mg of Vit B6 with the start of my next period. That is supposed to lengthen it. You can also combine that with a natural progesterone cream. You can get this at Health/Natural food stores. You ONLY ADD the Progesterone cream in the last part of your cycle, after ovulation. Good Luck. I am proof that pregnancy is possible with a short LP.