I'm 15+4 and more tired than ever!! With the last two, I didn't really have too much tiredness and only then, in the beginning of the first tri. This time, I've been super sleepy since I found out pretty much. Some days I'd go to bed at 8 and still wake up tired (I am usually a night owl and in bed between 12-1am). I'm on school holidays (teacher) and I don't know if the sudden slack in pressure has made my body go into relax mode, but every time I sit down at the moment, I feel like I could really really easily fall asleep. It's terrible. I'm so tired!! I really want some energy back as I don't want to spend the rest of this pregnancy exhausted to then lose loads of sleep with a newborn - or even before that, when the bazillion trips to the toilet at night kick in in late third tri.