My husband doesn't understand :(

Mary • Miscarried June 2014 and again September 2014. Got pregnant again in February 2015 and had a healthy baby girl. Now we are ttc for #2 since October 2016. Had chemical in April 2017 and still trying. Going through some testing now trying to see what to do
 I miscarried two babies in the last 8 months. They both were around 6 weeks old. I'm 33 years old and this is our first year trying. Ever since I have lost the first baby I started researching everything I could about miscarriages, causes, how to improve fertility etc. I kept trying to put my diet apart and my lifestyle to see if there by any chance I did something to cause any of those mc's. As am sure all of you did and continue to do.
I really didn't really cry much and I didn't fall into a clinical depression either. I consider myself a pretty strong person. However, I have kind of gone into my research mode and spend about 1 -2 hours a day reading articles and trying to figure out how to improve my chances next time. My husband says he is worried and that I appear to only have passion for one thing now and it's to have a baby. And he wants me put my apps away and focus on life and hope we just get pregnant. But I know you don't just fall pregnant. You have to have sex on those days that you are fertile to have any chance at all. Ugh!
I don't want to put strain on our marriage but not sure what to do? Any of you are going through similar dilemmas?