Thanks for writing in to us.
There is absolutely negligible chance of you being pregnant due to following reasons:
1. You did not have sexual intercourse.
2. There was no possibility of semen being deposited near your vagina.
3. You had your periods even if delayed
For peace of mind please do home pregnancy
test at least 15 days after above event. The test is very accurate and is 95% sure in its result.
Hope this helps