Does a fetus who dies in his mother's womb fall under the general meaning of the Hadith: "There is no Muslim for whom three children die before reaching the age of discretion, but Allah will admit him to Paradise by virtue of His mercy upon them"?

The miscarriage or fetus that dies in its mother's womb will admit its mother to Paradise if she seeks Allah's reward for it. As stated in the Hadith: "No two Muslims have three of their children die but Allah will admit them to Paradise by virtue of His mercy towards them... By Him in Whose Hand my soul is, indeed the miscarried fetus will drag its mother by its umbilical cord to Paradise if she seeks Allah's reward for it," meaning if she perseveres, seeking reward from Allah Almighty.