Waheguru Ji,
I have worked in a fertility clinic myself and I can say that from what I've seen first hand, I understand that it is the single most hardest thing a couple goes through. Not to mention the amount of money you have to give in order to have a child.
I apologize ahead of time as I haven't read all the other posts so I'm sorry if this may be a repeat of what someone has already suggested.
I would suggest a few things and please try to follow them as best you can:
1. Try changing both of your diets. Eat as vegan as you can. The reason I say this is because we really don't know what half of the ingredients are in what we eat. These chemicals do so much damage to our bodies and we don't even realize it. Organic is the best way you can go.
2. Cut out stress. Stress releases hormones. In a woman, hormones are produced in the lower abdomen. These organs need to balanced between progesterone and estrogen. Too much or too little of these will make the organs out of complete balance causing other issues asides from just infertility eg. Endometriosis.
3. Meditate. Meditation is the best form of soooo many things. So you can never go wrong.
4. Hukham. As hard as this is, we also have to learn to just simply trust that everything is as is in its perfectist (if that's a word) form.
5. Smile. To help overcome the anger and other negative mood symptoms you feel. Just by physically smiling or laughing can instantly change your entire body language and how it feels.