Not to scare you or anything but i ovualted on 1/7/13 and i am trying to conceive and experiencing similar thing s. I have become very aware of changes going on with me right before af. Things that i dont experience before af. Since 3 dpo i have had mild cramps and one day inbetween i had some serious pelvic cramps that only lasted a couple hours,pinching/pulling in my abdomen and today it has been very uncomfortable,exhausted, to the creamy cm,backaches,nausea,hungry all the time even though i just ate something.my guess would be for me its a bfp but who knows i will find out on Sunday. Wish baby dust to you :)
I guess we are all going thru the same thing!
I had a misscariage nov 18 I ovulated jan 13 and im praying to be pregnant :)
3 dpo you wouldn't be feeling anything it is way too early for symptoms ...it could be all in your head. I guess wait and see if you miss your period.