Delay Period

Hi I am looking for some answers and wondering if anyone had a similar experience. A couple days before my period I started take fish oil, c0q10, chlorella and inositol supplements 1 each per day.Now my period is delayed by 5 days ..do you think the supplements caused it. .I haven't had sex within the last month so I doubt I can be pregnant. Can anyone advise what is going one. Btw my period has never been late . I am 40 yrs with endometriosis. Never been able to get pregnant. Trying for 11 yrs. and still trying