Estimated due date??

Can someone try and help me figure out my estimated due date?

My last period was March 3rd, 4th and 5th. 3 days.

My next period was due March 27th.

I got a peak ovulation test on March 13th.

We had s3x on March 10th, 12th and 13th.

The due date calculators online give me different due dates depending on what info I put in. If I go by last period it’s one date and if I go by conception/ovulation it’s different…..

Thanks!