Who’s good with conception and ovulation times?

I need help ladies!

My doctor, and the ultrasound place confused me..

So I’m due February 11th

The start of my last period was April 28th

I ovulated 2 weeks late (according to the first ultrasound)

I found out I was pregnant on May 27th, via pregnancy test. (I took a picture so it’s date stamped or I would have forgotten)

When would my husband and I have convinced?

The calculators don’t work because I ovulated late.