Period cramps at 7 weeks?

Kristi • Saved by The Blood of the Crucified One! Glory Im Saved!
So when I found out I was pregnant I really only took a test to see if I could take my usual period cramp meds. Well I got a BFP that morning and so I didn't take anything. For about 2 weeks I had some cramping like my period cramps that would last for a minute or so and then come back just a few times a day.
I'm now 7 weeks and they started lasting longer (just in the last few days) but come less frequently. 
I also just started being nauseous and throwing up a few times as well. 
I thought the whole implantation cramping should be over by now so if you're pregnant and cramping too, let me know how far along you are and what yours feel like!