Aww mama, at 39 weeks na kayo so you're almost there na! But honestly, with the lower fluid and all those details, kailangan mo talaga mag-follow up ulit with your OB bago mag-try ng anything else, they'll know best kung okay pa ba yung baby at what's the safest next step for you. A few of my mum friends were in similar situations, at dineferred lang nila sa doctor kung ano talaga dapat gawin kasi bawat pregnancy is different. You're doing great na with the walking and everything, but let your OB guide you from here, sis, safety muna ng you and baby!