hmm...I'm not sure, but its ironic that I've been having very bad insomnia lately and i have to get blood work done to see if I'm pregnant. LOL. I'd ask on webmd, or ask your doctor. Most people can go through bouts of insomnia caused by stress, over-work, shift-work, etc. It's normal. If pregnant then yes, some women can experience insomnia mainly because they can't find a comfy spot in bed. Stay away from too much chocolate, soft drinks, coffee or tea and don't eat anything after 8 - 9 PM. Sometimes eating before bedtime will keep a person awake. Caffeine (I mentioned above) can often cause insomnia.