Early signs of pregnancy

steph

What were your earliest signs of pregnancy? I had unprotected sex 4 days after my period, and according to my app now I’m 4 DPO and I have been feeling nauseous in the morning when I wake up, moody, emotional and very hot. I will take a pregnancy probably next week but do you all think I’m pregnant? Are those signs of pregnancy or is it too early to think those are signs?