Have you taken a test as that is a possibility of beinging a sign and missed period is always the first sign that's normally a second sign of pregnancy. X
I can't say whether its a sign or not because pregnancy is different for everybody. There is always a possibility if you had unprotected sex. If your period is due soon, then wait and see if it comes. But while you are waiting to see if it comes, do not stress over it because that can also make your period late. I say wait until your period is 2 weeks late, then take a pregnancy test..just remember do not stress during this waiting period. Good luck!
It can be either or take a test to make sure
Maybe it is a sign of your period that might start early. If you have unprotected sex, you might be pregnant. The next sign if you are pregnant is implantation bleeding or you missed your period a week after then get a urine pregnancy test to see if you are pregnant or not.