DS woke up from his nap at 2pm. He seemed extra groggy.

He said he was sick and has been laying naked hugging me since then.

His temp was 37.4 upon waking
Then 37 for the last few hours

My temp is 34.6 and I'm pregnant.... The air con is on but his skin is hot to touch...he's just fallen asleep on me now....

What should I do?
Is his temp high?
His heart is beating really fast, for resting and he didn't eat much today...picking only and isn't even very hydrated. He spent a little while (20 min) in the sun and pool this morning but doesn't look burnt

What have I done to him?

If you have a 2 yr old and can check their temp? Or have any idea. He's never sick

Also he shakes every now and then, like he's cold

Please help. Should we go to hospital, being a Sunday! No gp....