Monitoring Fertility

Ashley • Proud wife, mom, bonus mom (step-mom), and physical therapist! Expecting baby #2 February 2018. Loving my hectic life!!
Since I just came off BCP and have no idea if my body has adjusted, I bought some OPKs yesterday. I plan to take one Sat when my fertile time is supposed to start. I don't monitor my BBT or CM. Should I?? Do yall?