The injections that they are talking about is progestogens. It does not make the uterus stronger, it just ensures that the endometrial lining is healthy enough and remains that way to support pregnancy.

Its a harmless injection. It is actually a hormone that your body produces. The theory behind it is that the corpus luteum is unable to secrete enough progesterone to maintain the pregnancy leading to a miscarriage. So, they feel that by supplementing progestogens, which is a synthetic progesterone, you circumvent this.

There are no serious side effects to your baby or you and there is no increase in the risk of down syndrome.

The need to do a D and C would depend on the type of abortion, not the fertility rate. If you have a complete abortion, there is no need to do a D&C because there is nothing to curette out. But if you have an incomplete abortion or any retained products, D&C is vital, because the retained products can cause a lot of trouble and maybe even cost you your life if it is not removed.

yes, that is its an elected abortion. But spontaneous abortions do occur to people who want their pregnancy. Its commonly called miscarriage. D+C will sometimes need to be done for spontaneous abortion in which the conceptus has not fully aborted

The shot after delivery is usually of oxytocin or oxytocin/ergometrine. Its meant to prevent post partum hemorrhage. usually given after delivery of the baby but before the placenta.

Just to correct a misconception, the shoulders are the most difficult part to deliver as they are the widest. After the shoulder, the rest just come out just fine. Sometimes the head gets delivered and the shoulder stuck, a condition called shoulder dystocia which is an emergency.