Implantation close to start of next period???

Lorean

Question!! So I have a 26 day cycle and this month I apparently ovulated on cycle day 18. That doesn’t seem to provide like any time to fertilize and implant. According to my app, I could *potentially* implant the day before my period is set to start. My question is, if I do indeed get lucky and the egg is fertilized and implants the day before my period, will my period not come or do you think it’d be too late to stop the period from happening?