Like the title says I am 15 weeks pregnant and experiencing light cramping in my lower abdomen! After having 2 early MC I just cannot relax at all, I wouldn't say they were sore, just that I was aware it was happening!
I also thought it was constipation but tmi with great struggle managed earlier! 
I am far too nervous about a late MC, private gender scan on Sunday which we booked a while ago, feels like a lifetime away!