Sayang, discharge macam tu at 38 weeks kena check dengan doctor or midwife hari ni jugak , jangan tunggu contraction dulu. Boleh jadi normal, boleh jadi sign of something, tapi doctor kena tengok sendiri. Since baby still moving ok that's good, tapi better safe than sorry lah, terutama dah dekat delivery time. Go to labour ward or clinic, let them do a check, cepat je. Take care!