When should i visit doctor?

It would be good to go on the 8th week if everything is fine for you. You just need to take folic acid asap. Go to pharmacy. I went on my 9th week to get referral to hosp, and got an apptmnt on my 13th week. I went to poly on my 9th week to avoid doing the transvaginal scan. So when i went for my first hosp appt, i straightaway get to do d Ultrasound and see my baby. So it's up to you, if you're not feeling well or in pain, you may wanna go poly now to get referral apptmnt date to hosp asap.