Men (if we are men that is) are supposed to take an active part in the family: share the burden and not leave everything for the woman to do. — Agent Smith
Not really. Let me play it out for you:
I look like I do. My risk factors are X
She looks like she does, her risk factors are X
We have sex, and conception occurs. Nothing about me has changed. Her hormones are shifting...
a month later,
she has put on a few pounds, hormones are shifting, emotions are shifting, and her risk factors are increasing. She has added different vitamins to her diet and some foods she used to love are offensive to her now, her taste has shifted.
I look the same, I feel the same, my risk factors are the same.
Repeat that for 9 months
Just before birth she has gained 30 (or more) pounds, runs various medical risks, has stretch marks, mood swings, has been quite uncomfortable for the last 2 months, remains emotionally labile and still needs extra vitamins and has bizarre food tastes.
I am the same. No changes, just doing my thing.
At birth she is in pain, parts of her are tearing, she may need surgery, she may actually die, she may suffer a stroke. She may (likely) never return to her pre-pregnant condition. She may have post-partum depression, or worse, psychosis. She may be suicidal.
I am the same, still doing my thing.
Also, at any point in this process, I can go to Mexico and find another girl if I like, totally an option.
Tell me again how I should have a say over what happens to her.
The only qualifier I will make to this statement is that if she is using drugs/alcohol while pregnant that will harm the child I should be able to mandate her to stop until the child is born. That is a far worse crime than abortion.
Having said that, if she wants to give up the child to abortion and I (the father) want it, that should be a no brainer.