sex at 5 weeks?!

I am 5 weeks today and am becoming more nervous about flying out to see my fiancé. not the flight but I know I will want to make love to the man that helped me make this blessing. I am so scared tho... with working in an emergency room I see all the horror that come with pregnancy and I don't want to hurt our little baby bean but I also want to make love to my fiance.... what should.i do ?!?!?!? help !!!!!