31 weeks questions please help!

Ok Mamis I'm 30 weeks 6 days as of today. I already stop working luckily my husband can support us with his job, well here is my question this is my second baby is been  5 years and I don't really remember much but is it normal for me to feel super tired ! Like if I have not sleep at all and all I want to do is sleep I mean I wake up at 7 am everyday to take my 5 year old to school and pick her up by 11 clean the house do chores but I am so tired all the time like really xtremely is this normal ?