Hi Katy
My experience was the same, I got tonnes of cramps, pulls, pains and stretches at the very early stages (5-6 weeks ish) and then they sort of stopped. They picked up again last week (10 weeks ish) and are only just easing off again.
Hopefully its all normal, but I would ring your MW if you're worried.
Julie xxx
Snap!! My picked up again quite badly last week and are easing off again now with just the odd twinges in various places xx