So try not to worry about her not finding the heartbeat - I try most mornings but only find it every now and then (hadn't heard it for about a week, but found it this morning).
Pram congratulations on 3 years, that's a fab achievement! Look at how much your life has changed in that time, then picture how much it will have changed again in the next 3 years - you will have a 2.5 year old, possibly another baby, who knows where life will take you!
Comms so sorry to hear about your puppy 
Re phones, my DH defected to the dark side (Samsung) and when it started playing up he had so many issues trying to get it fixed. After it had been sent off 4 times he demanded an exchange and was refused! I had a problem with an old iPhone, took it into apple and they just swapped it on the spot. Because of this, I plan on being an iPhone girl forever
My contract is due up so will get the 5S I think. Very confused though, O2 website says the 5 handset is £600 so does that mean the new one is cheaper, RRP is £549 apparently?!?
Having a complete CBA day today, DS came into my bed and watched tv until I realised it was 10am and I can't spend the whole day in bed no matter how badly I want to!