Toddler Intuition

The last three days or so my 17 month old has been clingy (I don't mean that in a bad way, just wanting to be held and needing a lot of attention), irritable, and for the first time has been having what seem like tantrums. If I take something he shouldn't have like my glasses -- and I take it very gently and tell him it isn't for him -- he freaks out. I got my BFP today... Do you think he could sense a change? Or just a coincidence?