I would say since it's only been 4 months, she definitely needs space. Did you use an agency or attorney you can leave your info with and if so does she know how to contact them? She will contact you when she is ready. My oldest son's (who is turning 5 tomorrow

) birthmom at first didn't want ANY contact. Then she wanted pics and letters and then right before he turned 2 she wanted to meet him. We love knowing how she is and being able to allow her to see how ds is doing, but that might not have happened if we had forced the issue.
I'll be praying for you!