Ok in may I had sex with this boy on the twelfth and my periodcame on on the thirtieth... in June I had sex with aanother boy and my period didn't come on in June.. july I went to the doctor and they told me I was pregnant... my due date is march first 2013... which one could possibly be my baby's father?

Could be either of them, no way to tell, esp since you did not even give what day of the month you had sex with the boy in June.

But conception is estimates that are give and take two weeks, so the only way to ever know is DNA test when child is born

Could be either of them, no way to tell, esp since you did not even give what day of the month you had sex with the boy in June.

But conception is estimates that are give and take two weeks, so the only way to ever know is DNA test when child is born

June 8th

There is no way to tell who the father is with dates this close. You will have to have a DNA test done after the baby is born.

There is no way to tell who the father is with dates this close. You will have to have a DNA test done after the baby is born.

Ok

Culd I have conceived may 12th 2012 if my due date is march 1st 2013??

Culd I have conceived may 12th 2012 if my due date is march 1st 2013???
No, that would likely be Jan/feb.
Although dates are all Best Guess anyway.

With a due date of March 1, you most likely conceived around June 5. But remember that all due dates are an estimate. You will still have to have a DNA test done after the baby is born.