LOW LYING PLACENTA

hello mommies! 23 weeks pregnant meron ako brown discharge for one week na then yesterday and today meron red spotting pero onte lang naman. sabi ng OB normal lang daw pag brown discharge. possible daw kasi na dahil sa low lying placenta kaya may discharge. binigyan lang nya ako ng isoxilan as medication. pero worried na ako nkasi may red na discharge na though onte lang naman pero nakakapraning pa din. meron po ba kayo ganitong experience din?