Thoughts on this? My son is 6lbs1oz as of Tuesday. He was born 04.23.17 & I have a Graco Ready2Grow…

Thoughts on this?

My son is 6lbs1oz as of Tuesday. He was born 04.23.17 & I have a Graco Ready2Grow stroller without the carseat, which I plan on getting next week. My sister bought it for me to use for now because he's too tiny for the straps in the stroller. (I tried!) He's 18½inches, born at 37w2d. The box says 8-35lbs.. I'm just curious if I shouldn't use it or just go ahead with it? In his car seat (for the car) as well as the stroller, I have to use blankets to keep his head from bobbing around so much since he's so tiny.. I walk because I have no license or vehicle.. Plus we'd only go to the post office or the store down the street. The store doesn't have enough room for the stroller nor do they allow them inside. And I can't leave both of my kids outside. My daughter Can walk, but yeah.. Anyway. Just curious...