Gods plan to have us adopt?

Adele • TTC since January 2013
I've been struggling lately with whether we arnt getting pregnant because it's not in Gods plan for us. I've been thinking a lot about it lately and praying for his wisdom. Basically I want other opinions if it's hasty of me to want to adopt and bypass infertility testing? I get anxiety about having to go through all of the invasive testing. I've been praying and I feel that if I was meant to go get testing done that God would've given me the courage to do so and opened that door for me. It just doesn't feel right, yah know? Also, he could be saving me from unnecessary testing because there isn't anything wrong with me and he really wants us to adopt or adopt a child first before giving me my own biologically. We have been trying for 20 months. I know that everything happens for a reason and Gods timing is when he wants it to happen. I'm frustrated but I've been becoming a little bit more comfortable with the whole adoption thing. I would love to carry my own child but in the end I really just want to have children to raise. Hope that all makes sense. Thanks for reading.