This is my first pregnancy and I'm 5+5 weeks. I've been lucky enough not to suffer from any nausea or sickness yet (I've been totally exhausted and really sore breasts though). I've read though that it can start around six weeks. Does it tend to just start out of nowhere? I'm reserving all judgement as I know every stage and everyone is different, but naturally I'm feeling a bit anxious and would be interested in others' experiences.