so had unprotected sex

with two of my lovers around the time of ovulation. went to doc for the ultrasound and im having twins! question is: is that myth that twins can have two different fathers true? cause one is black and one is white and im phillipino.. so there will be a difference when they are born. just wanting to know so i can go ahead and tell my husband. he cant have kids anyways since he got a vesectomy from his last marriage. im really scared that they will have two diff daddies... HELP!

UPDATE!: MY HUSBAND AND I ARE IN AN OPEN MARRIAGE!

UPDATE: IF YOU DON'T HAVE ANYTHING TO SAY ABOUT MY QUESTIONING... THEM STFU AND DON'T SAY SHIT! I DIDN'T FUCKING ASK!