am i bisexual

i don’t know if this is annoying, but i don’t know where else to ask? how does someone know their bisexual? i’m a girl in high school, ive never kissed or dated a girl but this girl at my school came out and i’ve been looking at her like differently. i’ve been thinking i might be for awhile now but i don’t really picture myself having a family when i’m older with a woman, but i also don’t picture myself with a man. i’m rambling on but i’m really confused and was hoping to get some advice? i really think i might be bisexual but i also never see myself coming out, i don’t know how my parents would feel or if they would see me differently. this whole paragraph is a mess but i need help so any responses would be nice !!