endometriosis question

so my mom told me that they think she got endometriosis after she had me at 19. she went on to have my sister 5 years later before she knew she had anything wrong.

google says that it runs in families, so how much of a risk am i?

i have regular periods, no pain except typical cramping. but do get lower backaches randomly which i read can be a sign of endometriosis so now i’m worried. 🙁

i’m going to see my gyno for my yearly in february so i’m still gonna mention it to her but i’d like the know beforehand.

thanks in advance!! 💕