My hsg test results show both fallopian tube were opacified with free intraperitoneal contrast please what does this mean, do i have fallopian tube blockage?

No, that means both tubes are patent.

An HSG with contrast material showing "free intraperitoneal contrast", implies that your fallopian tubes are open, and theoretically do not provide a basis for infertility. However, your GYN physician may recommend a diagnostic laparoscopy to make certain that the ovaries are not blocked by adhesions, should pregnancy not occur in the next 8-10 months, given your partner's normal sperm count.