Bright red to brown then bright red again

Been having lightbleeding since i found out na buntis na ako. Pero binigyan na ko ng OB ko pampakapit duphaston and duvadillan. 2weeks e take 3x a day. Im 5weeks 5days pregnant now. Masakit din po balakang ko pati boobs. Ano po meaning nito? #pleasehelp #pregnancy #firstbaby