What Causes Foamy Vaginal Discharge After Intercourse?

Hi, may I answer your health queries right now ? Please type your query here...Hey. I am a 20 year old female. My husband and I just had intercourse and he ejaculated in me. After doing so we realized white foam coming from my vagina. The foam didn't have a smell and it was kind of thin feeling. I am pretty concerned to what it may be. I do get UTI's often and I have had a yeast infection before. Please help.