Please help 😢 fill like a bad mum.

Clare-Marie • MOTHER OF THREE 2 girls 1 boy 3 angles And a baby on the way due July 2019 Married

Im a mother of 3 children 2 girls aged 10 and 8 and a boy aged 5. Im 17 weeks pregnant with a girl. I have a big baby bump married so i sleep with my husband anyway how do i say no to my 8 yr old daughter NO you cant sleep in my room. She is right next door to my room. Ive been up over 2 hours now saying NO go back to bed and ive been putting her bag to bed. Im so tied right now its 2am and ive given in. Told her tomorrow she is to stay in her room all day (NO tv or playing) am i in the wrong i fill like im a bad mother please help and no mean comments. 😢