So confused

My period is 4 days late and I haven't tested yet because I don't want to get my hopes up. The only other symptom I am having is all of my bras are so uncomfortable. Like they don't fit right. I've tried loosening them and then they just don't support right. I've been peeing a lot more but I've also been trying to drink more. Could this be my month or am I just over thinking!?