Thanks for your query. Unfortunately the reason for first trimester abortions is due to CHROMOSOMAL ANOMALIES, its the natures way for selecting the best and discarding the worst embryos. So it looks like a SPORADIC ABORTION and not a HABATIUAL ( Recurrent pregnancy
I hope this information has been both informative and helpful for you. In case of any doubt, I will be available for follow ups.
Wish you good health.