There are many things that can cause a m/c and the most common on chromosomal abnormalities- something that cannot at all be prevented. Most m/c have an unknown cause, and unfortunately, first trimester losses are very common. It was NOT your fault.
Do you chart your cycles? Are you taking vitex b/c of a hormonal issue you are already aware of- such as low progesterone?
I posted this info from Adventures in Tandem Nursing in a different thread that I just tracked down...
It's too much information for me to summarize even, but I will say that the overall message seems to be there is not enough research to conclude definitively one way or the other, but the overwhelming anecdotal evidence does NOT show breastfeeding to cause miscarriage or preterm labor. The book is quick to say that it is a decision that every mother and care giver must weigh "in light of indirect information." Experts in the field of miscarriage and preterm labor are quoted in the book saying that there aren't any data suggesting a link between breastfeeding and pregnancy loss nor is there any evidence that implicates breastfeeding in increasing the risks of preterm labor in healthy pregnancies. In another part the book says a good rule of thumb might be if you are told that sex is unsafe during your particular pregnancy then you might interpret this to mean that you should discontinue breastfeeding as well.
I hope that helps!
Edited by Jaimee - 6/16/11 at 7:20am