Trying to conceive

Mama’s need some help with calculations, I’m trying to conceive. I use two different calculators (a basal thermometer calculator, and a period tracker app which also lets me know my ovulation day.) In addition I use ovulation test strips. So here’s my confusion. My cycle is typically 24 days, the date of my last period was on 12/31. If I Google an ovulation calculator it says my ovulation day was yesterday 1/9….but according to my apps I’m not “supposed” to ovulate until 1/13 and the other app says 1/16. Also my discharge/cervical mucus …whatever you call it has been very thick and coming out rapidly in the morning…sorry if that’s TMI. I used the ovulation test strips all week too and it says I haven’t ovulated yet. What information should I go by?