Husband needs to help out more...

I am a stay at home mom for my 7 mo old, i have a full day of cleaning, teaching, feeding breastfeeding and fruit and veggies now, bathing, diper changing, putting her down for her naps ect. dinner cooking, a maid pretty much do to the fact that i clean everything and do all of the laundry including folding it and putting it away and taking out the trash. Every single day but weekends my husband helps me a little bit.. ok i guess what i am getting at is why doesn't he help me more during the week? Its a lot of stress on me and i am currently pregnant with #2 baby. And i know he has a fulltime job in all but i really need more help. Anyone else feel this way???