Does anemia n stress delay periods?

Yes, they both can: Absolutely, they both can. However, if the period is delayed too long and you think you might be pregnant or have another issue going on, please see your ob-gyn.

Generally, your.....: Anemia would have to be significant before you experience an impact on your periods. Indeed, anemias emerge commonly among women because they have a monthly blood loss that goes uncompensated by new rbc synthesis. Sometimes these anemias can be quite significant, suggesting that menses can proceed unabated, even in the context of significant anemia. If you are worried about this, consult your dr.