I went to get a BT done to verify pg, then I generally don't see another person (usually a midwife/OB @ the hospy for first apptment) until 12 wks. Though if I had any issues like bleeding (1st 3 pg's), I went for referrals for US's and quantative BT's. Otherwise there's not much else a GP can do for you in such early pg. If you have issues like severe m/s or cramping or something, then you could go for referrals or medicine, but otherwise, not much else is checked before 12ish wks IME anyway!!