I had my first (maybe only) ultrasound this week at 18w5d and it turns out my placenta is low. It's low-posterior my MW says that it's about 2cm away from the opening and she's not worried at all and says it's up to me if I want another US (which is recommended by the ultrasound lab).
Everything I've read is quite reassuring about the placenta moving up as the uterus stretches but I can't find any info that talks about whether or not it can actually go the wrong way or perhaps grow over my cervix as the placenta gets bigger, instead of just moving out of the way?
Should I think about booking a second US? am I just being paranoid lol?
(I know I have that tendency)