Hello I am 26 weeks pregnant. During 25 week scan my placenta was at 24mm and during 21 week it was at 18mm. During last week, the gyneco did the transvaginal ultrasound and there was some blood which was normal as earlier i had spotting but very minor. Today after 1 week i saw again pinkish red spotting while wiping. Is it normal ? What causes this bleeding? And by when i can expect the bleeding will stop because of may be low lying placenta ??