Baby #2

My husband wants to start trying for baby number 2 after I’ve begged him 😂 my son will be 1 next month, the question is my period has been on time for the last 5 months but I haven’t gotten my period in September yet, I’m 7 days late, took a test and it’s negative how will I know when I’m ovulating so I can be sure to have sex those days? Was it easy for some of you to get pregnant the second time around?