Could I possibly be pregnant or am I just overthinking my body?

Hi y’all, I have been trying for a baby (not too long, it’s been about a week) but still has me anxious lol. This would be my fist pregnancy if so. The things I have noticed that I have never experienced before (together mostly or at all) is nausea, sleeping a lot, diarrhea, and what feels like period cramps, having to pee a lot, and lower back/hip pain. I know it is too early to tell anything. But it would help my anxiety to know if I am just over thinking bodily functions. Thank you in advance!!