How’s my bbt chart looking ? Negative pregnancy tests and starting to give up

Just took a pregnancy test this morning and it’s really bumbing me out , also I’m actually 10dpo today , I ovulated Saturday the 9th . Can some one tell me what my chart means ? Is aunt flow coming soon? It also said possible implantation happen on 15th but I was reading implantation usually always occurs at 9dpo so yesterday for me , could I be testing too early ?