Is it ‘normal’ to feel like this?

Okay so i would really like some opinions of other pregnant ladies please. I’m a FTM and I’m 14 weeks and have had a fairly standard pregnancy so far, I am still experiencing a lot of fatigue and don’t feel I’ve been sleeping that well that past few weeks. I’m seriously irritable, like my mood can change in a matter of seconds. The smallest things are annoying me so much. I’m feeling excited and nervous about baby, but sometimes I just feel a bit empty inside and I have no motivation to do anything for myself. I can’t work out why. This pregnancy was planned and is very much wanted. I can’t work out if this is normal pregnancy emotions or should I speak to my midwife?