Aaaw, congrats sa pregnancy! Cramping sa early weeks can be normal talaga, a few of us went through that din, kaya don't panic immediately, but since you're only 6 weeks in, it's really best to check with your OB agad para ma-rule out kung walang concerns, especially if it's paired with spotting or heavy bleeding. Better safe than sorry, lalo na first time mom ka! Sending you hugs!