morning sickness and change in appetite are usually the predominant when in the early stages of preganancy.
the stress of you thinking you might be may have lowered your immune system and caused the fever. And stress in general can cause breakouts of acne and the like. As for the swelling of eyes. You might want to think if you have any allergies. If you dont you might not be getting enough sleep. Which could add to the stress and lack of immune system strength. Though its not 100% accurate. You could always buy a pregnacy test from any local stores