Would like to ask

Hi everyone, I would like to ask as my husband sperm is super yellowish and right now we still unable to produce a baby out as I have a kid with me which is belong to my previous marriage as my kid was asking us when will we give her a brother or sister we answer her we are unable to give you a sibling and she felt sad after hearing about that. How can we really conceive to have a kid and therefore I had an abortion in 2014 as I doesn't know do the doctor really help me done a good job of it.