Why is my period late?

Adrianna🎀 • I was born 19 years ago and I'm just getting by. ❤ My heart belongs to Jesus Christ⛪.
Hi. Im 16 years old and still a virgin. But im 11 days late on my period i never been this late. Im usually 2 days late. I know im not pregnant but idk if something is wrong with me. My mom had this happen to her when she was younger where she didnt have her period for months and still a virgin. But im scared like i wont be able to hace kids or something. I aint planning kids right now but still. Thank you.