Just as a bit of background, I undertook my first ICSI cycle in 2006 which resulted in a successful pregnancy; a FET cycle in 2008 which resulted in a successful pregnancy; finally, undertook a fresh ICSI cycle in August which resulted in a chemical pregnancy. My concern is that I have a short luteal phase following the birth of my first child ( from 14 days to 11 days). When I undertook the FET, I had a breakthrough bleed at 11 dpo when my period would have been due though this ceased within 24 hours and I went on to have no other problems with the pregnancy. During my most recent ICSI cycle, spotting started at 10 dpo (6 days after a day 4 transfer) though I had had a positive pregnancy test at home on this day. I was advised to continue with Crinone (one pessary per day) and heavy bleeding started at 12 dpo. My HCG level never rose above about 50 and was back to 0 within a week or so.
My questions are : Would a short luteal phase have contributed to the chemical pregnancy? If I have a short luteal phase, should I have been prescribed a higher dose of Crinone? Should my progesterone levels be monitored more closely immediately post transfer? Is there anything that I can do to increase my luteal phase prior to our next cycle starting in Jan 2011 i.e. I have heard that vitamin B6 is helpful?
Many thanks for your advice