Baby advice?

Hi ladies, so I'm 24 in April, in a great relationship and in full time employment in the service industry, I suffered a miscarriage in late march last year, it was very early on and I didn't even know I was pregnant. I'd gone through a horrible break up and was drinking heavily and I felt so guilty. Shortly afterwards my best friend told me he was falling for me and we've been together ever since. I adore him. He is literally my other half and he's so good to me. But lately I've been consumed by the urge to have his baby. I want it so much but I know we can't afford it and that makes me really sad. I well up and sometimes cry when I see small children and babies. Does everyone go through this? Or, at least has anyone felt like this? Or am I one of those crazy women that doesn't deserve a boyfriend? Any input would be appreciated.