3 dpo symptoms?

So normally about a week before AF shows up my start hurting. Well last night when I went to bed I noticed my were starting to hurt. This is not a normalcy at all for me! I'm thinking i'm only 3 dpo so this can't be happenin but I look back to my pregnancy 8 years ago and it started almost immediately. Yesterday I was bloated and gy and now the tenderness not to mention the nipple sensitivity! What do you think are the chances we did it this month??? Just curiousity!!!