If you have had a period, it is very very unlikely you are pregnant. The chance of being pregnant AND having a period is miniscule. Remember folks - always use a condom.
You can bleed when you are pregnant but it's not usually heavy. Have you other reasons to suspect you're pregnant? If you have,do a home pregnancy test.
As above, if you've had a period it's unlikely and if you mean you did it in the 7 days before it then you were unlikely to be fertile during that time in your cycle anyway.