Hello. I am a 38-year-old full-time housewife who got married traditionally about 5 years ago. My husband is a 49-year-old architect who told me he divorced 7 years ago and has two children from his previous marriage. His ex-wife and children live in Canada. He often travels for work.Since our marriage, we've been hoping for a child, and my husband has been understanding about our childlessness. My mother-in-law rarely answers my calls and doesn't trouble me about a child either. My best friend advises me to give my husband a child to secure my place in his family.A few months ago, my husband's friend started staying with us. Initially, it was just for weekends, but he hasn’t left. My husband says he's helping his friend who supported him in the past. One afternoon, the friend walked in on us having sex, and instead of being angry, my husband asked him to join. Though I was embarrassed at first, I got used to it. My husband said it’s just sex, so the friend joins us occasionally. My husband travels a lot, and when I feel lonely, I sometimes go to his friend's room.Recently, I found out I am pregnant. My husband has been on a business trip for over a month, and I don't know how to tell him. I'm worried he might question the paternity. How do I know whose child I am carrying? Would it matter to him? Should I consider ending the pregnancy? Please help me.