HELP - Clingy Two Year Old

[DebbieSWFC]

Can anyone help me out. My two year old son has really got clingy with me over the last two weeks. He is changing rooms at nursery and is having a really bad time adjusting to his visits.
When dad tries to put him to be he screams (2hours the last time)which is really getting to him
I have tried putting him in bed and trying to settle him but he cries and I have left him until he goes to sleep.
I hate to see my son upset but am I doing something wrong because I feel like a very bad mum at the moment.

Debbie

All I can say from my limited experience, is that I'm sure it is just a phrase and he'll come out of it soon. My dd is 2 and we had a similar thing a month or so ago when she just wouldn't let go of me at bedtime and cried and cried at her gate, also waking in the night and doing the same. We just reverted back to the baby thing of going in and quickly settling but increasing time between visits..can't remember name of it..
It was hard because I had to be quick with the gate or she'd shoot through before me!
But after about a week, we were back to normal. It was upsetting, but you have to be firm. You're not a bad mum.

My DS is two, as well, and started to exhibit exactly the same behaviour pattern about 4-6 weeks ago. I put it down to the fact that I'm expecting again and I was suffering with really bad morning sickness and couldn't look after him as well as usual. It really seemed to make him more anxious and clingy.
He went through a phase when he refused to go to sleep on his own - I let him cry once for about 20 minutes, then decided that I'd rather comfort him if he's so anxious. We bought a junior bed, which he loves, so that we can lie next to him if he's upset. Within a week he was back to his old routine, going to sleep independently. Occasionally he still wants us to be there while he's falling asleep, and a couple of times he came to sleep with us in the night. But most of the time he's fine.
However, he gets very upset when I drop him off at nursery, he's gotten himself into the habit of making himself sick as soon as we get there, so I'll take him home. Apparently, once I'm gone he's fine, as long as he's kept busy. Sometimes he has a little whimper, when suddenly remembers I'm not there, but otherwise has a good time. But it still breaks my heart when I have to leave my screeming child behind. The nursery tells me not to worry, it's quite normal and they haven't got any concers about his behaviour.
Sorry this is so long...