No sex is actually good for later on in your pregnancy im 18 too and im 7weeks and 2days but sex is always good but i agree with the other lady if it hurts tell your doctor and if it takes a while for you to scheadule an appointment just stop for a while until you see him because thats how i felt when me and my boyfriend have sex i still get nervous but for the most part enjoy it while you can cause i have older friends with kids and they tell me its more difficult to "get it in" if you know what i mean lol.
NO SEX IS NEVER BAD.. BUT IF IT HURTS YOU TO HAVE SEX THEN YES STOP AND TELL YOUR OB.
Sex is never bad LOL I would take it easy though and not do anything crazy. I am pregnant with my 3rd and we did all nine months with both pregnancies, everything was fine.
Nope, it won't do Anthing to the baby.