My fur babies.....

Ok so my positive ovulation test was a couple days ago, bd'ed the next day and ever since my fur babies are driving new insane. They won't leave me alone, constantly following me around.....down the hall, to the kitchen, sitting with me in the bathroom, snuggling so close in bed they basically kick me out ( king size bed btw), my older fur baby is constantly crying/whining to make sure I pay attention. They don't normally act like this at all......could they know something I don't?