Implantation???

Ok, I am currently 9dpo. At 6dpo, I started feeling a dull ache in my right lower abdomen, around my ovary. It's a pinching sensation, very similar to ovulation cramps. They have lasted for 4 days now, and they come and go. Since then I have also had sore breasts, and feel achey all over, especially my back. I'm supposed to get AF in about 4-5 days. I was thinking the cramps were implantation cramps, but now I'm not so sure because they're lasting longer than 2 days and they're still in the same place. Any insight on if I may be pregnant or not? Hubby and I are trying for our first