Curious

No, it absolutely is not true at all. Provided the procedure is done properly, it has no effect on your fertility.

A sterilisation is always voluntary, discussed as a separate issue, and explained to you before it is done.

If you are rendered unable to have a child as a result of an abortion, someone has f*cked up and needs to be held accountable.

No, whoever told you that is wrong.

The rhesus negative complication only refers to when there is a transfer of foetal blood cells from a rhesus positive foetus to a rhesus negative mother. If you are positive and the baby is negative, there's no concerns as far as I know.

If the pregnancy ends early - either through a miscarriage or through a termination, then the clinicians can (and do) check if there was a transfer using the Klein-Harr blood test on the mother and give injections of Anti-D to resolve it or as a precaution. They would also check at birth, or if you were pregnant and had a bump or fall.

If the foetus is also rhesus negative, there is no need for Anti-D.

If your body developed an antibodies to react to rhesus positive blood (for example if you were supposed to get the Anti-D but weren't given it) then you can still get pregnant as normal (ie. your fertility is not affected) but the pregnancy has a higher risk of miscarriage in the second trimester. Usually first trimester miscarriages, even recurrent ones are not as a result of a blood transfer between foetus and mother. I'm a RH negative and had fertility issues/miscarriage after a pregnancy and thoroughly checked it out.

Probably best to talk through your own specific medical history with your doctor. They would explain it better than I could and also tell you if something in particular in your case would or would not be relevant.