Disappointment

My bbt has still not dropped, and yet I got my af still. I am so angry and frustrated. I just want to give up. This is so much more physically draining and harder than it should be. My last one I conceived in 2 months, it ended up being a mc at 9 weeks. It's been almost 3 months since my d&c. I just wanted a baby. I don't know if I can continue to do this. Trying so hard every month just to keep getting disappointed every month. Thinking maybe I should give up and go back on bc because this is extremely hard every month.