Is this a sign? im really curious please answer?

now know its 2 soon to be having signs cuz if i am pregnant i would only be a week pregnant and i dont start my perid till june 10th and i know a lot of ppl who are ttc just think they are having symptoms cuz they want one so bad but eating changes cant just be in your head right? latey i have been eating strange food (4 me anyway) a couple days ago i ate a hot dog with mayo,mustard,ketchup,relish,onions,chili… jalapeno peppers normally that would sound disgusting 2 me since i dont even like half the things i put on there, and since then i have ate even more wierd things, plus i have been wanting to put salt on everything which is different, is this a sign or just in my head?