Early pregnancy symptoms (before the next period is due) are very, very subtle if there are any at all. You might be seeing hormonal symptoms of any kind, they pretty much all look alike this early.
All you can do is take a pregnancy test when your period is due. You could also go to a doctor for a blood test now, it would pick up the hCG in your system (if you have any) before the period is due.
If you are pregnant, adoption is doubtless a choice open to you if abortion is not. I'm sorry, but there aren't any "I'm regretful because of the possible consequences" guarantees based on symptoms, at this point. You need to find out what you are facing.
Please try not to worry yourself into a state of anxiety until you find that worry is really necessary. And if you are not pregnant, please look into forms of birth control.