Very typical to have more bloating - it's annoying but usually it's nothing to be concerned about. Hormones are wonderful things, aren't they?
Now, when you say it's as if you're "six months pregnant" are you exaggerating at all because you just feel yucky about your body? Did you carry very small babies before so "6 months" for you is on the small side for many other women? Or is this so much bloating that you really can only fit into standard maternity clothing? If the latter, I'd give the doctor a call - they all take calls on weekends. Are you constipated at all? Is there anything else going on? Are you evenly distended (the same on the right and the left)? Any pain on one side or the other? If anything is unusual, I'd call in.
And every pregnancy can be different from the others - it's also normal to be more tired but that's because you're chasing other kids around.
Congrats and hope you get rid of the morning sickness soon!