Weird symptoms. (weird cramps)

MaryJane
Ok so I found out this weekend we are pregnant. We just hit 6 weeks!! Yayay!!!! We have been trying for while to to be parents. I thought I was going to start my period so I kept putting off taking the test. But got very sick this weekend and figured I'd see and a positive! Then I took 6 more! Haha just to be sure!! So happy. So first question how long do the cramps that feel like your period is going to start usually last and is it normal that I normally only get them when I bring my knees upward like curl up in bed, it literally wakes me up or pull my feet into a chair. It's hard to describe. Idk if it's flexing those muscles or what but has anyone ever experienced this?