Pangolins are like some of us.
Pangolins live isolated lives. Male pangolins tend to encounter a female only rarely – there is not a mating season but they tend to copulate only once or twice a year. Female pangolins have a 140-150 day gestation after which they give live birth and care for the young pangolin for up to two years. At this point the offspring are sexually mature.
Like most mammals including humans, pangolins have external and internal reproductive organs which are distinctly male or female. They remain sexually active throughout their lives. Details can be found here. With the high rate of poaching and trafficking it is increasingly hard for the population to reinvigorate.
Pangolins have a sexual dimorphism by which males are easily identified since they are considerably larger. There is not much in terms of photo comparisons available though, and it varies by specific species.
Mothers tend to have only one child at a time, though it is possible to have more. Raising multiple offspring proves difficult in the wild.
Males will tend to mark their territory, and if a female show happen into disputed territory then two males will fight for her affection, using their claws and tails as clubs.