I feel like a failure.

After 2 years of TTC and nothing...I just want a baby so bad. I have a 5 year old with my previous relationship (ended because he was abusive) I am now with the best man I could ever ask for and I can’t give him a baby. I love being a mother. What is wrong with me, why can’t I do what a woman is suppose to be able do 🥺😞