5 weeks pregnant is it natural to have a mild cramp at my lower back?

Hi mama, lower back cramps at 5 weeks can happen dahil sa hormonal changes and ligament stretching, pero since this is your early pregnancy, mas okay na i-check with your OB talaga para ma-rule out anything else at ma-assure ka properly, alam ko ang worry kasi ganyan din ako nung first pregnancy ko, hinalinhan ako ng ilang mum friends about the same thing but each body is different so best to confirm with your doctor na.