Is this the reason why I had miscarry ?

Do anyone know or not if clear sperm cause miscarriage ? I ask this because one of the donor on this site ( knowndonorregistry.com ) gave me his sample in a softcup and what I thought would be white color sperm it turn out to be clear. I got pregnant but it ended with a missed miscarriage at 7 weeks ( doctors said they didn't see a heartbeat). Could his sperm be the reason why I miscarry the child or what ? And if so I don't want to go back to the same guy.