cycle buddy?

Me and hubby have decided to start ttc this month. AF was supposed to be here on the 15th I marked it late and this is my updated month. AF still hasn't shown up and I'm cramping. I took a hpt 2 days ago and it was negative. I'm suppose to ovulate again the first week of November according to the app. I wish AF would hurry up so we can start trying. This is the second time in 9 months I've been late.