5w with cramping, insomnia

Jenn
Hi everyone, just in need of a little advice. 
FYI this is my first pregnancy.
Around the expected time of my period in early February, I started experiencing major cramping (normal for me) and thought I was about to start my period. However, it never came after about 3 days of cramping. So I took 2 tests, both positive. 
Since then I have had pretty intense cramping. Sometimes it's so bad that I cannot get out of bed or feel dizzy. The nurse I spoke with said that's a fairy normal symptom and I have my first appointment scheduled for this Friday. 
However, I'm now experience insomnia! I'll fall asleep fairly early (9:30/10) and wake up around 1am with either hunger pains or cramping and do not fall asleep until 4am or so. 
Anyone else experience this? Any advice? 

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