 [ Symptoms ] boyfriend is semen is clumpy    hi my boyfriend did not used to smoke and his semen looked fine i compared it to others and now that he started smoking synthetic marijuana his semen looks clumpy and stuck together i mean its wet but it looks like shredded parmesan cheese and its in clumps i want to know like is it possible his sperm is still able to fertilize or is he shooting blanks [ Disease ] no sperm containing male and female chromosomes are made in each testicle so you still have a 50 chance of having a boy or girl unless you adopt a child