10 dpo - trying not to sympton spot but...

I am 10 dpo and since about 2 dpo my chest has been so sore. I know implantation doesnt happen until at least 6 days but normally my boobs are sore a couple of days before period but they have been sore since ovulation and are not getting any better (unusual for me). I did have some slight cramping on 6 and 7 dpo. Just wondered if anyone out there has had sore boobs since ovulation and gotten a bfp? Period is due in 4 days. Thanks