How likely is it for a woman to get pregnant on LOW birth control?

Question

How likely is it for a woman to get pregnant on LOW birth control if the only contact she had with her mate was through two sheets of clothing (pre ejaculation) and a quick bruch against the area near the vagina (several minutes after emission?).

Answer 1

so very very very slim, like less than a 1% chance.

Answer 2

Not likely at all. He didnt ejaculate IN you right? if not then you are ok.