Fertility question please answer

Michelle TTC baby #1

OK so I went to the fertility doctor today for the 1st time... They did a vaginal ultra sound and looked at my uterus ovaries and Fallopian tubes... It showed that my right Fallopian tube at looks like it has fluid in it.. But the left one is perfect... Does anyone know anything or have experience with this problem of having fluid intheir fallopian tube???