Mama, please see your doctor or go to the hospital agad, cramping with tightness like contractions, especially with back pain, needs to be checked right away, okay? Hindi kami dapat mag-assume kung normal lang yan o may kailangan pansin. Once the doctor checks you and everything's clear, I have a few mum friends na nakasama nila ang cramping sa early pregnancy, but it really depends on what's causing it, so let your OB guide you talaga. Sending you strength, and please don't delay getting checked!