Low Lying Placenta

Last Dec 5 prenatal, low lying placenta po ako so I was advised by my OB na magpa inject ng steriods for 4 times every 12 hrs. Para daw just in case mag spotting ako ng wala pang January 14 (yan na week kasi fully mature na si bb). Not only that, I was also advised not to lift or carry heavy objects, avoid sexual and streanous activities including extreme walking. Sinunod ko naman po. Good thing I'm on my 34th week now. Tanong ko lang po, by Jan 3 next prenatal ko ulit and 35 weeks preggy ako nyan, not fully mature pa rin si bb. Hoping okay na placenta ko that time, pwede na po bang mag squat and walking at 35 weeks? Or I need to wait mag 37 weeks? Thanks po sa sasagot.