I can pretty well understand your feelings. But the vast majority of the first trimester abortions are caused by chromosomal abnormalities of the fetus,and its the nature's process of elimination. But if you get two or more losses,then you need to be investigated with few hormonal
tests and a uterine cavity
evaluation. As of know, you please do a Blood grouping Rh typing, a sugar profile , a TSH
and a antiphospholipid antibody.
DONT WORRY, you can start with a folic
acid-pyridoxine-methylcobalamine preparation 1 month before you plan your next pregnancy
.That may help in few cases if these deficiencies are the culprits.
good luck bye.