stressed...fighting with the hubs😖😡😥😭

I don't know what is going on but I have been with my man for over two yrs. & we never fight! I've known him since we were five and we were best friends growing up. Lately all it is bickering back and forth, stupid arrguments etc. I can't take it!! I am already stressed out trying to figure out why we haven't conceived and I don't know what is going on or what to do! Any advice?! Also .....non related topic is it really that much better to test in AM?! Please help ladies !!! Love and positive vibes to you all! Happy monday