Donating an organ generally has lasting, long term consequences for the donor. Childbirth, on the other hand, typically results in none of those.
Generally speaking, for the vast majority of HN commenters, authoritative statements on the consequences of childbirth for mothers should be taken with a grain of salt .. given as much credence as you would a third-party anecdote from someone who's closest connection to the source material is a daughter, partner, sister or their own mother.
You may be the exception here, but going by the numbers I would expect not.
Edit: to be clear, in my experience childbirth (and what comes after) has undeniably lasting, long term consequences for the "donor" / mother. Not to mention the immediate family, broader community, society at large, even the environment. Certainly more so than any organ donation (in my country at least these tend to occur in the moments surrounding death). To me, the parent comment seemed so removed from reality that a lol summed it up :)