Hello and welcome. I know it sucks that it's taking so long, but you have found a great place to let out your frustrations and find other women who share the same thoughts and feelings.
My hubby and I got pregnant in February, lost the babies in April, and have been trying again since July. So I can understand how frustrating it can be month after month.
It sounds like you are already doing quite a bit to increase your chances, and I'm not sure what I could recommend. Personally I do the following: temping (BBT before getting out of bed in the morning), opk's, tracking cervical mucus and cervical position, laying in bed for 20 to 30 min following sex, taking prenatal vitamins, and I am drinking a TTC fertility tea 3 times a day. I am also doing all I can to reduce stress.
My doctor has pretty much said the same thing about wanting to wait to see us for any fertility testing or treatment. And I understand that they want people to exhaust trying to do it naturally before they step in.
I would suggest if you are getting very frustrated to take the rest of November and December off. Stop focusing and stressing about making a baby and just relax and enjoy being with your husband. I know earlier this year when I got pregnant that's basically what we had done. Once we stopped trying so hard it took a lot of the stress away and it happened. I'm honestly thinking if I'm not pregnant this cycle that we might take some time off.
But just remember to stay positive. You are right that God has a plan and he will give you a baby when the time is right. It was 9 months from the time we got married to the time we got pregnant, and now its been 7 months since we lost the babies. But I have faith that it will happen again, and in the mean time I'm just being patient.
Know also that you have other women here who are supportive and understanding of what your going through.