Yes, maggots could potentially hatch and grow in your vagina, but this medical condition is extremely rare

Myiasis of the vagina is a rare parasitic infection caused by fly larvae. It's not an STI, but open wounds in the vaginal ...
Los Angeles Times

California issues advisory on a parasitic fly whose maggots can infest living humans

This is read by an automated voice. Please report any issues or inconsistencies here. California health officials warn that the New World Screwworm could arrive in the state from an infested traveler ...
KTVU FOX 2 on MSN

California health officials warn about flesh-eating parasite that can infest humans

State health officials have issued a health advisory warning about a rare and previously eradicated parasite that can burrow itself into the flesh of humans and animals.
Fort Worth Star-Telegram

First human case of flesh-eating maggot in U.S. detected in traveler, feds say

The New World screwworm is a flesh-eating parasite that lays eggs in open wounds. It can be devastating to livestock and, in rare cases, humans. U.S. Centers for Disease Control and Prevention The ...