I know you are probably not wanting you current boyfriend to know that you had intercourse with your ex but it is in the best intrest of the child to get a perternity test once the baby is born. The chances are 50/50. Good Luck.
Get a paternity test when the baby is born. Those dates are too close together to just guess which guy is the father! Sperm can live up to 5-7 days in the vagina. Therefore it's anyone's baby at this point.
the chance is 50/50
there is noway to tell what date you conceived on, thats why they tell you you can have the baby 2 weeks befor or 2 weeks after your due date. sorry but test after baby is born is going to be only way to tell for sure