I had sex a day before ovulation. he didn't pull out .its been a week and i've changed eating habits. i eat more. is this a sign of pregnancy??????

Not necessarily: Eating more can be due to the worry about being pregnant! If you have had unprotected sex, unless you are in a longterm monogamous relationship & both partners are STD free, get checked for STD's. Continue birth control if you don't wish to become PG. Since you might be, assume you are & do not take any other meds (not prescribed) except a prenatal vitamin with folate (folic acid). No drugs, ETOH, tobacco.

Too Soon: Probably too soon to have those types of symptoms, but possible. You could do a blood pregnancy test now, or wait and see if you miss your period and do a urine pregnancy test.