Alittle embarrassed to ask

My husband and I have been ttc. He ejaculated in me 4 days in a row, and today I noticed a fishy smell down there. Idk if it’s a sign of yeast infection or bacterial vaginosis. Or if it’s normal if there has been a lot of semen in you mixed with your own CM. Anyone had this happened. It’s pretty strong. Hope it goes away soon. Thank you 🙏🏼