They don't understand

I don't think the people around me understand how tired I am when I say I feel tired it's crazy how I can wake up do one thing and feel like it's been a whole active day my husband just brushes it off when I tell him and still expects me to do everything and he sighs when I ask him to do things for me 😤 my two year old is on the go all the time I'm up and down the stairs all day bending over I dont know how many times a day  I'm 36 weeks pregnant and I just wanna lay down in bed with a clean house I don't wanna cook dinner every day n make my husband lunch n breakfast for work I'm just tired and I needed to vent 😖 where do I find the energy