Going to have kids without a man?

Chelsea
Anyone going to have kids without a significant other? 
I have a 17 month old by my ex boyfriend. We aren't together/compatible but coparent together. I feel like I don't want to wait for someone in order to give my daughter a sibling. I'm doing this on my own as it is, so what's one more? What if I don't find someone to be with? I have pre cancer in my reproductive organs and I really want another child. I fear by waiting for "mr. right" I might not be able to have any more children. 
I don't know the real point of this post...I guess I just want some thoughts on the matter and what you think. If anyone in the same mindset?