Trying to conceive~

The concept should be so simple right? Well it isn't, or not atleast for my husband and I. Everywhere I turn I see pregnant chicks and I think to myself, how did you do it? Aside from feeling a slight bit of rage, I am truly jealous, envious and wishing it were me. For as long as I can remember, I've wanted a baby and to be a mom. If I had tried to have a baby in my 20's could I have? Now that I am inching closer towards 40, I wonder what God's plans for me are? Will I get that experience? Or does he have something greater planned for me? My husband and I have often discussed what if we can't have kids, then what? The option of adoption and or fostering children has been up for discussion many times and I am totally open to the idea. Maybe that's what God wants me do? I constantly hear from people, quit thinking about it and trying and it will happen. Are you serious? Do you have any idea how badly I want for this happen? Tick tock, tick tock. I am 38, I feel like the window is closing. The old adage "time is on my side", is not for me in this case, I hope the fertility specialist can help us.