Sorry but...

I got crap from someone about a question I had week ago or so. I didn't go to google because I thought I'd give me bad news then I'd worry. Only reason I'm stating that is because I have a question again and I tried googling it but I couldn't find and solid answers. I was ovulating October 28th - November 3rd the SO and I BD'ed those days, and AF is due November 16th. The past few days my boobs have been hurting and itchy really bad actually, and as of yesterday I had some light cramping nothing horrid but enough to know it was there. I'm not sure if I could actually conceive that quickly or not. And if not do anyone you know what it could be? TIA