How does nausea work when pregnant? I am not sure if having early symptoms? I have felt it on and off. It comes and goes. Yesterday seemed a lot after I ate. Then would kind of lessen. Felt it mildly two days ago. Today doesn't seem as bad. I will feel ok and then get a wave. Then be ok agian. Does it come and go or should it be constant? I don't know if it's. Possible symptoms or is it something else? I am not due until around the 17th so don't know if it's to early to feel this ether. What have others felt?