How old?

Hi I'm a FTM my LO is 2 months old and my aunt and mom are offering to watch her for the entire weekend so i can get some rest. I had a c section and as soon as I came home I refused to sit down or rest. I am with her 24/7 non stop and I try not to get any help. My boyfriend helps as much as he can between working and school. I am so exhausted but i feel like a terrible mom for even considering having anyone watch her for a extended period of time let alone a weekend. At the same time I am secretly excited. Is she too young to be staying the night? I completely trust my aunt and mom and so does my boyfriend.