I had unprotected sex on 16th and had my periods after 2 days which last for 2 days. This month I'm not havibg my periods. Any chances of pregnancy? Kindly help

16th of what? It's the 17th today.

How late is your period this month?

Yes, pregnancy is possible. It's possible any time you have sex, even if you use protection. Not using protection simply increases the odds.

Wait until your period is at least 2 weeks late, then test using first morning urine. If that test is negative wait for your next period, and if you miss it, test again or get a blood test done.

https://www.askmehelpdesk.com/womens-health/really-urgent-767642.html

I notice that you asked this question again, twice. Please don't start multiple threads asking the same question. I've reported your two other questions. Any further info regarding this question should be posted on this thread.

You got the only answer anyone can give you. Yes, pregnancy is possible. You'll have to do what every other woman on Earth has to do, and that's wait until your period is 2 weeks late, then test. There's no other option, and no one online can tell you if you are or aren't pregnant.

Good luck.