How Do Your Pets React To You When Your Pregnant?

I've heard dogs can sence it then I've heard they cant? My 4 months old pug ive had since a baby she has lately been followig me around everywhere, she is always trying to lay or stand on my tummy and i have to push her off, but she has been sleeping next to my stomache almost everynight for the past week , she also scratches at the blanket where my stomache is to try to get it and shelll lay there right next to my tummy? Can she sence it im only 14 weeks but starting to show and she watches

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