What am i missing?!

Saturday on the third we had unprotected sex, last night.I took a clear blue Advanced digital fertility test and it says, low chance. I took it again this morning and now it has the :) which means high chance and then tomorrow probably will be peak..... why is the app telling me that on Saturday.I.had a high chance to conceive if yesterday clear blue was telling me It was low ?! Just to add in.... We were purposely trying when it was low. Kind of like let the universe decide instead of trying when it was most likely going to happen! I already have 2. And I really want another, but i'm so emotionally overwhelmed at how I can do it! two kids, two hands.What do I do with the third?Carry them on my head, ha ha