Conception Dating Questions

My due date is 1/9/27 and based off my last period 4/4/26, I conceived supposedly 4/18/26. I took an ovulation test on 4/21 and it was positive and I had some spotting. The pregnancy test was positive on 4/30 and my hcg was below a 9.

My question is could I have really ovulated 4/21-4/22 and still get the dating based off last period? I’m so confused and having a hard time with it mentally.