When did i ovulate? What is my dpo? Liklihood of BFP??

May 23rd you can see a positive opk test but that was a strong peak opk as well. The two days before that I didn’t test at all so I’m not sure if those would have been negative or positive. Before that positive opk I had creamy Cm Starting and on the day of the positive opk, I had weird looking pokey nipples and a slight ache on my lower back. Can someone tell me what dpo I’m most likely on and if the chart appears good to possibly get a BFP?? If possible I’d like to see your BFP charts !