What’s normal for 3-4 weeks?

For those of you that found out you were pregnant super early on, what was your first symptom(s) before getting your BFP? (Or soon after- prior to 5 wks pregnant) I’m currently having cramps, sore/itchy nipples, and a low grade fever that comes & goes. My appetite is almost nonexistent, And I’m exhausted. My discharge hasn’t increased at all, just watery.