not really compare to grade 3 and 4 where natatabunan na yung internal cervical os or ung labasan ng baby. Sa suhi naman it will turn on its own kasi 6 months pa naman.. you'll get worry if by 32 weeks if still suhi. And dont you ever "hilot" and lift objects especially that you're placenta previa baka matangal yang placenta sa pagkakapit... recommend a light like flashlight sa baba for baby to follow if that makes sense.