Need a cycle buddy

Melinda

OK here goes I'm new to trying to conceive this is my 4th cycle I have ir regular periods one month is 28 days the next month is 35 I'm trying to track obvulation. I get different readings from different OP k's and different apps, CM and CP are all over the place I'm so confused I should ovulate today or the 27th right now my OP k's are negative except for the stupid clear blue advanced which has been given me 8 days of flashing :) faces. Oh and we're doing ici with donor.... husband had vasectomy years ago. Im 39.i would love any and all tips and encouragement