My dog knows I'm prego?!!

Ashley • I`m Ashley. I have been with my boyfriend for 4 years.. Have one dog (red nose pit) rebel! And expecting baby #1 May 17
My dog( red nose pit) who is such a baby. Always has to cuddle in the bed. But here lately he has been up my butt. Want stop following me everywhere I go. I love it but lord I can't even pee without him by me! Has anybody else experienced this?