Is it possible for a fiancée to become pregnant after semen has fallen on the vulva from the outside, bearing in mind that she is still a virgin and this is the first time her sexual desire has been aroused, and what is the nature of the thick white discharge that appears periodically thereafter?

If the wife experiences an emission of manī, she must perform ghusl (definition). The manī of a woman is thin and yellowish, and it may be whitish. It has two distinguishing characteristics: its smell, which resembles that of a man's manī, and its emission with pleasure. However, if it is madhy (pre-seminal fluid), ghusl is not obligatory upon her. If she is unsure whether it is manī or madhy, some scholars mandate the ruling of both, while others allow her to choose between the two.