Aww mama, that's a valid concern at 28 weeks, a few of us had similar situations and our OBs also gave supplements like that kasi concerned sila sa baby's growth, so you're not alone dito. Regarding CS, hindi automatic yan, pero yes, the low fluids and small baby size are things your OB will monitor closely in your remaining weeks, kaya important talaga na sundin mo ang treatment they prescribed at attend your check-ups regularly so they can track kung kumukuha ng fluid at lumalaki baby mo. Hydration helps din, so drink lots of water and coconut juice if you can, maraming moms swear by that combination. Hoping your little one catches up sa growth, and keep communicating with your OB about your worries so you both have a plan moving forward, okay? Sending you strength, mama!