What are some important thing should i no about my girlfriend being pregnant?

Tons: There are tons of things to tell you about your pregnant girlfriend. You can google them easily. One thing i want you to know, though, is that hormones will influence her in such a way that she will be very sensitive to different physical and emotional stimuli (smells, tastes, attitudes, etc.). You must be ready for that and help her carry this burden until she is done. Leave confrontations behin.