Need some advice?

So my husband I just got a divorce. This is the biggest complication in my life. We separated when our son was 4 months old. I’ve always wanted to be a mom and I wanted at least 3 kids which was something at the time when my husband and I got married wasn’t gonna be an issue because he also told me he wanted kids. After a four year relationship I found out he had lied to me about pretty much everything so we split. He is still involved in our baby’s life. My problem is that I want to have more kids and I don’t want my son to grow up an only child. I’ve thought about going to get a sperm donor in few years when I’m ready for another baby but I’m m afraid that decision would be horrible for everyone involved. I’m not ruling out that I won’t meet someone but I don’t see that happening until my son is much older.

So is it okay to get a sperm donor even though I already have a baby and I’m divorced, or should I just be happy with the child I have?