The Natural Fertility Community

Help,
Last year I had two miscarriages. (Missed miscarriages where the baby had stopped developing early, but the actual mc wasn't until about 12 wks.) In each case we had been out of town for a week or two just before ovulation in the cycles I got pregnant. This seemed to delay ovulation until we got home, and I Oed cd 25 one time and cd 29 the other.
We are still trying to conceive and my cycles have stabilized again since the last mc in Nov 09. I generally O about cd14-18, have a 13 day lp and have no PMS or other complaints during my cycle. We went out of town again this month just before O (cd13) and it seems to have delayed it again. I am scared to death to try to conceive now this cycle since this late ovulation seemed to be the common denominator in the 2 miscarriages. Yet I hate to waste a cycle (I'm at cd25 now). I recently looked up late ovulation and miscarriage online and am wondering if perhaps anyone knows the truth.
Thank you so much for your help.