Why is it that everyone tells you that being pregnant is so fun and forgets all the horrible bits.…

Why is it that everyone tells you that being pregnant is so fun and forgets all the horrible bits. I'm nearly 30 weeks pregnant I'm hungry all the time even after I've eaten, I'm shattered and could sleep all the time and I just feel sick non stop but can't be sick. Just want her here now so badly =( ='( xx