Help with due date

I need help figuring out how far along I am.

My periods are completely abnormal due to PCOS and I wasn’t tracking ovulation this cycle.

My last period was March 9th. The period before that was December 6th.

We baby danced on March 17th and 18th , April 22nd and May 3rd

My symptoms started with fatigue, nausea, having to pee a lot, and sore breasts on May 5th and 6th.

I got a positive test on May 7th that popped up pretty quickly.

So now I’m wondering if there is a way to guesstimate based on when we baby danced?

Any thoughts?