I am 18 weeks pregnant today. I have posterior placenta. I felt movements like tapping continuously in the evening on my 17th weeks for like 2-3 days and then its been 5-6 days or maybe one week. I have not felt any movements. My last ultrasound was on 30th april where everything was okay and then i got fetal heartbeat checked on 17th may and it was present. My anamoly scan is scheduled on 19th june. What should i do? Is it normal to not feel any movement this early? Or should i do a fetal heartbeat check again.