Just a quick question.. Is it normal to be completely exhausted at 16 weeks?I already have a DS1 and was never this tired. This pregnancy is very different. But wts gting to me lately is my tiredness. Its unbelievable. I'll go to sleep at 9pm, get up at 9am and struggle to stay awake and by time its midday I'm on sofa struggling to keep eyes open. Can't be normal. I have no energy or motivation to do anything.