Period Delay For 10 days

Hi ladies! after 10 long days of AF not showing up and 3 negative test finally AF shows up and I couldn't be thrilled. You see I don't want to be pregnant now since I'm having a wondeful time just being a family of three and enjoying my son and giving him my full attention. I wanted to write this because their might be women out there that might be on the same boat as I was. Its possible that AF might not always be consistent even after years of consistency. I've been consistent for almost a year after having my son; I was never the type of person that had a normal period. But after having my son my period changed and it was always on time. My so and I have always use protection and have been cautious for a year. I don't know if this info will be important for anyone butl for someone that might not want to be pregant and AF hasn't shown its ugly face just know its possible to have a delay after so many years of consistency. Sorry for the long post guys. Happy Friday!!