TTC for baby number 2

Nicole • Have a beautiful 1.5 year old boy 👶🏻 February 6th 2018👼🏻 . Twin boys due April/may 2019🌈🌈

So I am 11dpo and this will be my first cycle since Giving birth. I am 10 weeks PP. when should I test since I don't really know my new cycle?