Could this sickness be pregnancy related or is something wrong with me?

If you felt fine when you puked it could be pregnany, but if you FELT sick then u might have just been sick. Since its been awhile I would just buy a cheap pregnancy test and try it because if you are having symptoms of pregnancy (migranes, throwing up) its from the hcg hormone that is released once the baby implants and thats what is making you sick and thats also what makes pregnancy tests positive. So if you are in fact pregnant and these are pregnancy symptoms then it should come out positive. If it comes out negative then I would just wait and see how you feel for the rest of the month and see if your next period comes. If it does then I'd say ur not pregnant. If it doesnt come or its just light like the last one I'd take another pregnancy test because light periods can occur throughout your whole pregnancy. Hope this helps. Good luck!!