oh well then I would wait to test at least 21 days after you had the unprotected sex. if you think you are pregnant and it comes back negative retest in a week.
I haven't had my cycle in 2 months so that's why I'm unsure.. don't really know when it's meant to be here either.
Have you missed your cycle? Test after you miss it. Or when was you last cycle? Because it might not be too early to test. If you 5 days or closer to your cycle you can test now. But I think its more accurate the day of your missed cycle. I hope this helps you a little bit. Good luck