I have a question how old was fatimah zahraa? Was she born before or
After the first revelations? And by how many years? How old was she at the time of marriage and her death? What are the conflicting opinions?

Jazakallah kahirun

She was 18 years and 10 months and 23 days or 18 years 11 months and 13 days at the time of shahadat
She was born after the first revelation it was the fifth year after the declaration of prophethood
At the time of marriage she was 9 years 5 months and 11 days