Calling all Experts!

So- I am 11 dpo today and had a very negative test this morning. I know I’m not technically out for this month, but I’m preparing myself for that reality. Gearing up for next month. What are your fertility tools? Do you like Bluetooth bbt thermometers? What vitamins do you swear by? I want suggestions. We’ve been trying by just tracking my cycle by my last period and ovulation pains and the strip ovulation kits. I want to put in more a concerted effort in this next go round. Also if you got pregnant after mirena, and did anything in particular to achieve your positive, I am especially interested in your input! Thank you ladies! Happy Friyay!