Advice?

Misha • mommy x5
I am 23 I have a five year old son and 11 month old daughter am now 8 weeks 4 days pregnant with my third known since I was 4 weeks due to eating habits and pregnancy test but with this one my emotions are so much worse and I feel I have symptoms I shouldn't have yet like the constant anger or sadness or tiredness like I'm huge I'm not even showing my boyfriend sucks cause he won't educate his self thinks I'm acting because I'm too early he says he never seen anyone act like me.....any suggestions for the fatigue and mood swings ? Super depressed. When I should be happy ...