Starting to speculate anterior placenta

Haley
18wks1day and little to no movement at all. This is my 4th pregnancy and with all my previous pregnancies I felt definite movement by 14 weeks. With this one I've felt a few slight taps on my bladder and out to the sides. But nothing like my other pregnancies. Doctors have had difficulties finding the heartbeat at previous appointments. Ultrasounds have confirmed a healthy pregnancy thus far. I have my anatomy scan on October 7th and I will ask then. I'm so grateful to be healthy but it is still disheartening to be growing everyday and not feeling anything. Anyone else in this boat?