Its normal,but still observation is needed.so kindly observe ur next few cycles.

According to Ayurveda if it's for first time it's fine but you need to observe  date ,and symptoms closely If there is heavy bleeding with cramps you need to consult a doctor Some times it happens due to hormonal imbalance Stress It has been observed that generally change on cycle happens after marriage If you arearried recently then it's absolutely fine but you meet to observe date and symptoms as I said earlier

It's normal

Its normal.. Nothing to worry

Share me some more details

21-35 days is ok. Watch few more cycles. If it gets delayed on a regular basis may need some evaluation.