pets???

My dog knew I was pregnant from the time I was 10 weeks, she'd act different from the time I wasn't pregnant. She'd cuddle with me every single day, I loved it and she'd just give me kisses, lay on my belly what not. But lately, she doesn't want to I'm due in like 4 weeks, she doesn't want anything to do with me it seems like.. she won't cuddle me or anything has any of your dogs did this? It makes me sad, tbh and she won't even sleep with me at night she'll only sleep at the end of my bed when usually she sleeps right by my head, or lays by my belly.