Ejaculation is yellowish and watery?

My husband's ejaculation is yellowish and watery. Does this mean anything? We have been TTC for over a year now. We have both been tested. He does have motility issues that have gotten better with vitamin's. He is 28 years old and in beautiful shape. Every time we have and we are doing it at the right time it will just pour out of me. He has a lot but it is very watery and it has a yellowish tint. Smells normal. Anyways -hope someone out there has some intelligent advice to give-thank you in advance