My baby won't stay/sleep on back

Lachelle
I'm a first time mom and my baby is only a week in the half and she won't sleep or stay sleep on her back. I tired swaddling her, hold her until she in deep sleep then lay her down, try giving her a pacifier (which she doesn't take) I tired EVERUTHING! They say not to lay your baby on there stomach because of SIDS but that seems to be the only way she'll get some sleep 😞 but I'm trying to avoid that as much as possible and get her to sleep on her back. Any other suggestions? Or what should I do ?