She's not online so I'll just assume yes for the time being and I can change it if it's a no.
Melinda May from Agents of S.H.I.E.L.D. please! she's sorta-but-not-exactly a mom...? Like, she doesn't ACTUALLY have kids , but she sorta acts like a mom to the younger members of the team, and in an alternate timeline she adopted a kid. also she's pretty much a ninja (she's sorta like Black Widow 2.0?)
also, link if you need more info, but spoilers if you ever want to watch the show (which I highly recommend!)
https://marvelcinematicuniverse.fandom.com/wiki/Melinda_May