Aww jangan risau, baby movement kat 27 weeks memang boleh jadi subtle je especially if placenta dia positioned at the front, a few of my mum friends had the same worry and turned out normal je. Tendangan akan jadi more obvious soon as baby grows bigger and stronger, tapi kalau you notice the kicks/movements jadi less frequent or completely stop, best to call your doctor or go for a checkup sebab better safe than sorry, especially for first time mums kan. For now, try to get a feel for baby's pattern, most of the time placenta positioning je yang buat movements terasa smooth or less obvious.