I need help figuring out my due date!

Am

Ok so I just had a baby 11 months ago. I’ve been breastfeeding the entire time, so when I got my period 9 months pp, it wasn’t a normal period. It didn’t hurt, and it was very light. It was a period though, because I know I ovulated before it. (I got a positive opk.)

Ok so that “first period” started on May 18. (Which was weird because it was only 9 days after I ovulated.)

The next time I ovulated was on June 6th. (Got a positive opk.)

Then I got a vvvvfl on a pregnancy test on June 16.

What’s my due date?!

June 16th

June 27th