I had a miscarriage when I was three months pregnant. It is much like an abortion in what it does to the body. It nearly made me sterile. Some of the blood went up into the fallopian tubes and blocked them almost completely off. My doctor thought I would never have children. Even with the blockage, I managed to have three babies. But with abortion and miscarriage, it is not what the body was supposed to go through, it is physical trauma, and it can make you sterile.
Bless you - your children are fortunate you kept trying!