Hi, Thanks for the query. Vaginal discharge increases during intercourse. This can be considered physiological only. Sometimes because of friction during intercourse some amount of vaginal tissue can come out. If you are not having pain or bleeding etc, no need to worry. If the same thing repeats in future, once get examined to rule out local lesions like cervical erosion etc. If you are around the period of ovulation, there is possibility of pregnancy. Because sometimes preejaculate fluid can contain few spermptozoa. If you miss your expected date of period, once go for pregnancy test. Take care.