Guidance

Hi all, I’m in my mid 30s and trying to conceive for our first. I use 2 cycle apps, 1 (this one) says my period is 3 days late while the other app is showing 1 day late. I took a pregnancy test 2 days ago and it was negative. Today was the first day I started cramping really bad so I thought my period was going to show up and nope nothing. I’m typically never this late so I really don’t know what to think. Was it too early to test, when should I test again? Any advice is welcomed as all of this is new to me. Thanks in advance 🫶🏽