It is the women's body.
Gestation takes place inside the women's body,.
She is at risk for life-threatening conditions or sudden death due to eclampsia or amniotic embolism.
It is her body that will bear the stress of pregnancy.
It is her that will possibly bear the brunt of post-partum depression.
It is her that can possibly form a rectovaginal fistula during childbirth which is both painful and unpleasant.
What did the father donate to this whole process? Oh yeah a single sperm and not having to endure any of the aforementioned. I haven't even listed half of the things a woman goes through before and after pregnancy and what else can go wrong.
It's great that you want to champion father's right but they will never ever be equal or supersede a woman's right to bodily autonomy.