i knew of someone who got pregnant from just "fooling" around. I think its possible, but unlikely. Early symptoms aside from sickness are sore breasts, a metalic taste in mouth, and an altered sense of smell (i had the last two). This wont happen until a few days before your due on at the earliest. You can early pregnancy tests now, but only a few days earlier than normal ones.i dont think theyre a good idea though, as an awful lot of women miscarry before they even know theyre pregnant, and as it comes as what seems like a normal period, so they would never have known. you can still get cramps like period pains as its the egg implanting. good luck.xx