When I was pregnant with my son my OB told me getting the laser was fine ( face) when I went to make the appointment with the dermatologist she refused to do it while I was pregnant.
I think laser is still too new in terms of knowing if it affects a baby or not and since we are such a sue-happy society, no one wants to take the risk.
I don't think and certainly don't know for a fact, that it would have caused any damage if you are. Like you said you would be so early in your pregnancy. Women do all kinds of things before finding out they are pregnant and the baby is born healthy and strong. I took prescription pain pills before I knew I was pregnant w/ daughter and she was fine. I stopped the minute I found out.
Good Luck!