What could this be - very confused?

Question

Ok well for the last few hours I've had this weird pulling sensation mid belly (really low though), what could it be, I'm only 3dpo so it can't be implantion right, cause it's way too early for that, so I know that, and AF isn't sue for another 14 days yet as my luteal phase is 17-18 days long, but it feels like my period is about to come any second, very strange indeed, never experienced anything like this, what is going on, possible explanations please if anyone has any ideas?

Here's my chart if that helps any

http://www.fertilityfriend.com/home/2156af

Answer 1

I found something similar on 3dpo and cramping, check it out it could help:

http://www.fertilityties.com/post/show/3...

i think it's too early for implantation, do you have a history of cysts, sometimes if too painful it could be a cyst and talk to your doctor if it persists, you can also ask a reproductive endocrinologist (fertility specialist) online for free for advice, try fertilityties.com

good luck and babydust!!!