Is it possible for symptoms of pregnancy to occur earlier than normal when carrying twins and if so how soon could it be after conception?

it doesnt matter if you are carrying twins or a single baby, the signs are the same and having twins doesnt make them sooner or stronger. usually if you have twins they cant tell until you are around 3+mnths unless you have to have an ultrasound for some reason. so the answer to your question is no they wouldn't appear sooner than someone carrying one baby. ob/gyn nurse