Idk what to do!

I've had a little of this since I gave up my daughter for adoption when I was 16 (I wasn't ready to be a parent and don't regret that choice) and only got worse when I had a miscarriage last year, losing a baby made me really aware that I do want children eventually and now whenever I see children I can't help but want one and I find myself thinking about moving up our plan. 

How can I get over these thoughts and be practical and stick to the plan?!