I met this guy he had 1 kid

I had 0

We were both single but he was a little more out here & still in an “entanglement”

He showed me enough attention, txt throughout the day, hanging out, became intimate

-during this time I had a crush on him I can say we both did but a relationship or anything serious seemed tempting & silly

9 months go by & we become more serious, feelings progressed we started going on dates, spending the night/days together, talking “we” etc...

4 months after we take that step he tells me his ex is pregnant (close to being due)

A month later I find out I’m pregnant with his baby.

We spent everyday together he was hands on, affectionate etc...

6 weeks later I miscarried & 4 days after that his ex gave birth to their baby.

A month later he has 2 kids and I have 0 & I can’t help but to still want to have a child with him! I’ve wanted a baby for some time but nvr acted on it with anyone until him... what should I do? Any advice?