Do period cramps stop possible implantation

Every month a week before my period is due I get bad back pain and stomach cramping...without fail. Been trying to conceive for a year now. Would this prevent chances of implantation? because I’m presuming most the time implantation wouldn’t of had chance to happen yet. Does anyone else suffer period pains so far before period is due?? I am always regular and today I am 9dpo due on in another 5 days.