Where only men in the slave trade or where women and children slaves too?
Yes, they were. They had to have women in order to be able to breed more slaves. It was cheaper to breed your own than to keep buying them in. And it is not true (as a comment above suggests) that women were mainly employed as house slaves. On the contrary, most women slaves worked in the fields alongside the men, and were then expected to go back to their cabins and do all the housework, cooking, washing etc, not to mention some were also expected to do several hours spinning before they went to bed. They even laboured in the fields when they were pregnant. On large plantations, only a small percentage of slaves worked as house servants. Although those jobs seemed on the surface to be more pleasant and higher in prestige, many women tried to avoid them, and some deliberately failed at their house chores in order to get back into the fields. their impulses were similar to the ones that made young white women prefer even the most unpleasant types of factory work to domestic service. Hou