Sorry To Bug But I Have A Question! Okay So

Sorry to bug but I have a question! Okay so I'm pregnant with fraternal twins that are 3 days apart. The fist day of my last menstrual period was on 07/10/15 and said that I was most fertile around the 21st - 24 or 25 one is 15w 3d and the other is 15w 0d I had sexual intercourse almost every day that week of or the 21st and then had sex with some other guy on 8/1/15 which I very much regret :'( and I took a pregnancy test on 8/6/15 and came out positive I was wondering if these babies are my boyfriends or that guys