Hai sayang! Putih pekat tu memang normal dalam pregnancy, it's called leucorrhea, discharge yang boleh bertambah sebab hormones naik, so don't worry. Tapi kalau ada bau busuk, gatal teruk, or berwarna kuning/green, kena check dengan doctor sebab mungkin ada infection. A few of my mum friends also experienced yang sama 3 weeks in, perfectly fine naman!