Worried as fuck

Priya

I had unprotected sex on jan 25th which was the day after my period for the month.

I popped an emergency after pill and on feb 1-3rd i had brown discharge which is like common with the pill

now my period date for the month is 21st Feb, and I'm a day late.

- btw suggested fertile dates were 2-8th Feb

Am I pregnant??

I'm having a watery discharge/wetness and before that a white creamy one.

Help me out.

Should I be worried ?

When should I buy a test?