Achey breast’s and cramping


So me & my husband have been trying to conceive our 2nd child since August and as of now I am 6DPO & for the last couple of days I have been having mild cramps on and off my breasts ache on an off as well but are not sore to the touch. AF is due 1/4/18. Has anyone else experienced with a BFP?! I don’t want to get my hopes up but I don’t usually feel this way after ovulation or even before AF.