Oo, normal yan sa pregnancy especially pag first time kasi ang body mo is stretching pa lang, pero since madalas at bumabalik-balik, better to check with your OB just to be sure everything's okay, walang masama sa peace of mind, lalo na first time mom ka pa lang! A few of us sa circle namin nag-experience din ng ganitong cramping, kaya don't worry, pero definitely confirm with your doctor para ma-ease out ang anxiety mo.