Yep prelabor. If you go in they will just tell you to walk more. The pain has to get a lot more before they will admit you to the hospital

and my obgyn told me that what I'm feeling is prelabor

the pelvic pain is from walking

Not yet then, maybe not till tomorrow. If its about the same in the morning I would walk, walk walk

and it hurts like someone is ripping me open from the inside

well, its been between 20-15min

some people go two weeks over their due dates

Keep track of how often the tightening happens and for how long it last. Some people feel contractions differently. Most will say don't go in until you are in so much pain you can't take it, but some people are having contraction and don't hurt horribly until their water has been broken

and I was due two days ago

and movement

ok well I've been having tightening of the stomach and pelvic pain

Contraction don't go away, they keep coming when you walk, move positions and such. Your in labor when they are coming consistently 5 mins apart and lasting a minute each