Mine started when I was around 5 or 6 weeks and lasted for a few weeks beyond that. As long as you're not spotting, it shouldn't be something to worry about, but I know how annoying and uncomfortable they can be! Best of luck!
I'm almost 10 weeks and still having slight cramps a few times a day. Nothing terrible at all, just cramps and twinges. I have seen my baby 3 times by u/s, acutally just saw LO on Monday. I asked my doc about it and he said it's completely normal to have cramps. However, he said if you are spotting or they get really bad then you should call your doc.
Re: Cramps
my blog :: the domestic wannabe
my blog :: the domestic wannabe