Is there any possible way to bring your period on? i'm 4 days late and stressing out i'm pregnant !

Check a HPT: Often, if your cycle is regular and you miss a period (and that you have been having relations), the chance of being pregnant is good. Often, the hpt will turn positive within a few days after missing period. So, do a hpt. If neg, repeat in 3-4 days and still not by then, likely you are not pregnant. Maybe yours is just late and it will come again--happens all the time. Consult doc. Good luck.