when should I test

K
The <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> says I start my period on the 23 and my other app says I start my period on the 18. We BD for both fertile weeks and ovulations. I have sore breasts, super tired, very emotional, acne, some cramps, and headaches. When should I take a pregnancy test? I hate waiting until af is late bc I'm so excited!