DS has been going to his nursery since last December when he was ten months. He does two afternoons a week which works out to about four hours at a time.
We did the settling in sessions but they were unecessary because he wasn't the slightest bit bothered about us leaving him. He never cried, just waved at us and toddled off.
For the past couple of weeks when we get there DS, who is now nearly 18mo, has gotten clingy and tearful when I need to leave. It's really upsetting. He's had the same key worker all this time who he adores but he didn't even want to go to her today. She took him out into the garden so I snuck around the back and I could see that within a minute of me leaving he was sat quite happily with a friend while she read them a story.
He's only recently started to be clingy at all (I'm sorry I keep using that word, I don't like it but don't know how else to describe it) - like he'll fuss to be picked up when we're in the house and wants to be carried far more than he used to, or he won't go to his dad or to me (depending on who has him at the time).
Have we done something wrong? I hesitate to believe there's anything wrong at nursery, he seems very happy when we go to pick him up and as he's being funny at home too I wonder if it's something I'm doing. Or is it perfectly normal for him at this age?
Sorry for mammoth post. Just feeling a bit 
