Thanks for writing to us.
The symptoms that you have can be related to a mild viral infection,. drug intake, etc. This is not likely to cause any major problems. Please do not worry.
The chances of pregnancy
are there as you had an unprotected sex.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Rakhi-Tayal