I was in your situation. Exactly the same. Newborn was light. So I carried my daughter when I have to feed my 2yr old son. With no helper at home and husband working, I have to manage everything myself. I carry daughter even when eating and put her on my chest when she sleep. So she practically slept on my chest for 3months. Everything got better on her 3rd month. Onli manage to put her down when husband is back. But she literally just want me to carry. Husband carry also no use. Was rushing for shower at night when husband is back. Once she fell deep deep deep sleep on my chest, then I place her on bed with mobile musical on. The music didn't work at first. Slowly she accept the music. She's 6mths old now and is really gluey to me.. that's Why got depression for first 4mth.. Lolx... better now though.. all you have to do is to endure.. I dont like yao lan.. so didn't put her in it. But you can try if you really really have no choice.