Ratty I'm the same. My symptoms have eased and I feel quite good - so as a result I'm worrying. Got 6 weeks to go until 20 week scan although I'm having a cervix scan on Monday so will see little one then.
I had a shocker of a night - DP was out drinking. Texted me to say he was on way home at 11.15 - so with getting a cab back I thought he'll be home 11.45 / midnight
Woke up at 4am in an empty bed!!!!! Scared me half to death. No text or nothing saying he was staying out. So I rang him basically saying "where the fuck are you?"
He was still in some shitty club in Birmingham so he was told to get in a cab pronto.
4.45 rang him again, he was only just leaving Birmingham in a cab .
Comes crashing into house at 5.15 am and it was getting light 
After that I couldn't sleep then he forgot his sodding alarm hadn't been turned off. 6am.... FFS I was ready to kill him!!!
I don't care he stayed out, not at all. But I'm cross that after saying he was on his way home at 11.15 he hadn't appeared with no word at 4am!
He's now dying on the sofa and we've got a close friends 50th birthday dinner tonight. I've told him he's sucking it up and he will drink tonight and celebrate with our lovely friend as I can't drink!!