Well I couldn't find anything in the dream journey about zombies, marital sex or fast food bags. I did find this entry about giving birth:
If the dreamer is pregnant the dream will be an acting out of hidden wishes, fears or desires, but, soon after you dream of giving birth to a child, or someone else giving birth, you will hear some good news. If the birth is in relation to animals this shows that any enemies working against your best interests will be defeated, and if the birth is multiple then you will gain a larger monetary reward for your labors.
I couldn't find anything about a sphinx either, but maybe you'd have more luck with a dream interpretation book from the library. Here it he link I used for what I posted above:http://www.sleeps.com/dictionary/dictionary.html