Hi I would have to sya no its not dangerous, Ive had one child and im 5 months pregnant with my second, I had sex all the way through my first pregnancy and never had any problems, Ive been fine this time as well, my sex drive seems to increase when Im pregnant so I would be stuck if someone told me I couldnt have sex!
I would just carry on as normal if something feels uncomfortable then stop doing it, it will probably get a bit uncomfortable as you get bigger as do a lot of everyday things but that will just be because of the weight of your belly and the funny postions your baby lies in, I really do doubt that you would ever hurt the baby by having sex, if this was the case then doctors would say not to have sex at all.
Have fun !!xx