Help determining how far along I am

Kay • Baby Boy mom 12.2018💙👶🏽

I got my bfp at 14 dpo (September 18) and my faint line at 10dpo (September 15)

My LMP was 8/16

Does anyone have any idea how far along I am? I really don’t know how to calculate this but my cycles are usually like 31 days long.