Thanks for posting,
The only natural way you can get pregnant is through a penetrating unprotected sexual intercourse besides that you can only get pregnant through artificial methods. So if you did not have unprotected sexual intercourse, then there is no need to worry about pregnancy
If all you did are the acts you are describing, then I do not think your ill feelings are related to pregnancy. Your irregular periods
probably linked to hormonal
imbalance might be the cause of you feeling awkward.
How ever if you still continue feeling abnormal it is best you see a doctor for further evaluation.