Unfortunately, the November 27 due date puts both guys in range, since you had sex on the 2nd with one of them, and the 4th with the other, and then got back together with your boyfriend again. You really are going to need a DNA test, and I wouldn't do one of the Walgreen's tests, I'd call the family courts in your area and get the name of a lab certified to determine paternity legally. This has to be done right, with i.d. and proper chain of custody of the samples, or you will always have reason to wonder. I'm sorry that there is no clear answer, but the long life of sperm in the woman's system (5 to 6 days) makes it possible for the dad to be either guy.
Omg my due date is the same day and I have the same problem. Only mines was a week after one another. have you figured anything out yet?
Srry forgot to put some more to it then after i have sex the 4of march with that guy i took a pregnancy test a week after it came out blank i took another nd it came out negative soi i was happy made up with my bf and started to feel sick march the 28 i took another test and it came out positive i felt like its my bfs but now the conception and ovulation making think twice