could be but seems not the most serious case. I'm worse than you as mine is "placenta covering os". I'm now 28 weeks and need to be very careful. you need to consult dr and ask for more advice.
thank you for your reply.
when i did the u/s in QMH, the dr told me my baby is ok and there is no problem. But when i read the report, it did have problem, which make me worry.
what advice did your dr tell you? would you share with me? thanks in advance.