Do I really not belong with God anymore?

In Leviticus 18 it says don't have sex while on your period because it's unclean, i recently have with a guy and somehow stumbled upon this chapter."If any of you do these vulgar, disgusting things, you will be unclean and no longer belong to my people. I am the Lord your God, and I forbid you to follow their sickening way of life." does this mean I'm damned????? Oh man I'm scared!