Looking for some advice..

Kayleigh
Just wondering if anyone's had a similar situation happen to them...
Sorry if TMI!
My last AF was March 15th as per my usual 28 day cycle. 
Had sticky clear CM on Tuesday 29th March then a positive opk on both Wednesday 30th and Thurdsay 31st. 
 
So as a guess I'd say OV'd 30th?
Which would make me 16dpo,
Had a faint positive Sunday 10th at 11dpo then a clearblue digital positive on Tuesday 12th stating 1-2 weeks,
Today however with FMU I had the following...
Surely it should read 2-3 weeks?:(