That's normal :) Try not to move suddenly ;)
I am 19 wk & got those kind of pain and i still got them here and there. mostly when i sit for long time ( bus traveling to work) and so far it has been nothing...+....There will be a lot of gas my friend ..good luck!
Yes, Adgal is right talk to your doctor about everything you feel
Aches and pains along with cramps are very normal throughout pregnancy. Gas is also an extremely common symptom. You should mention the pain at your next OB appointment though - they can check for a cyst. If the pain increases, give them a call. Congrats on your pregnancy!