Today's contraceptions are 99% effective. Saying "many women using them get often pregnant" isn't backed up by the data.
The main purpose of sex is to produce offspring. That's how mammals reproduced for thousands of years. Pleasure is secondary, and doesn't remove the biological factor of it.
You are right, until a flawless contraception exists there will be unwanted human beings. But if everyone used contraceptions the number of abortions would drop drastically. And even an unwanted human being doesn't necessarily have to be killed. There are entire lists of people wishing to adopt a child.
In Europe we don't have such a rule
The point of birth is a very arbitrary point. There is virtually
no difference between a 9-months old baby
in the womb a day before birth and a 9-months old baby
outside the womb a day after birth. Please explain why it is okay to end the life of the baby on one end of the birth canal but not on the other.
Biology is not sexism
Do you really think it is reasonable to blame the government for the fact that children are carried out by women and not by men?
Also, men don't have full bodily autonomy either. Who do you think is being enlisted in times of war? The government has the right to demand the body of their people in order to keep the society alive: the men's bodies to defend it, and the women's bodies to ensure the next generation (with the slight difference that men are
forced to put their life on the line while women are
not forced to get pregant in the first place).