Hi Rachy,
I dont think its anything to worried about just yet it actually inda sounds like branxton hicks which is kinda like false labour pains. I had the same thing over the weekend and my sister who has a 1yr old said she had same thing too and it was branxton hicks. They are normal as is some cramping as everything stretches. if theres no bleeding or any discoloured mucous or anything like that i wouldnt be too woried but if you are call the hospital and ask to speak to a midwife if they want you to come in then please go. A lot of people will say that branxton hicks arnt supposed to hurt but every woman is different and majority of women i have spoken too say that they do. There is another thread on branxton hicks somewhere on belly belly cant remember where though or do a google search on them and see what it comes up with.
If you are too worried please seek medical advice though, a quick phone call to your local hospital should provide needed peace of mind.
Have a great day
Mel