Sore!

Laura • Married 30/8/14, little boy lochlan
Not may haloed recently on the same topic but I've been getting really sore nipples sorry for tmi. They are sore to touch and throbe with sharp pains. I am now 5dpo, would this be a good sign? I've only ever had sore nipples just before AF and she isn't due till the 11th, so this is a first. Has anyone ever had this a got a bfp? Thank you for any help it would be much appreciated xx