Uy, this sounds like something you really need to discuss with your doctor asap, ha, hindi kami dapat mag-assume dito because it involves baby's health. Pls get professional advice right away para ma-check properly.
I know it's scary, but your OB/midwife will be able to assess your baby's growth and address your concerns directly. Maraming mums sa aming circle have had worries during pregnancy, pero lagi naming sinabi na ang doctor lang ang may tamang answer, don't stress yourself pa lalo without proper guidance. You've got this, at kaya mo yan. Sending you strength, and please go see your healthcare provider soon.