TTC and symptoms

Hey girls, this is my first post so sorry in advance. I've been TTC for the past month only so haven't been expecting to get a positive this first time around. I (sadly) got my period as expected about a week ago and it only lasted 3 days. I'm now having horrible cramps, nausea, headaches, backaches and insane mood swings. Should I test anyways to be sure or is this wishful thinking?