I’m so tired

I am so tired of trying, it’s been 4 months since we started and I know that’s such a short time but it feels like eternity, my husband and I are young, and healthy I feel like nothing should be wrong with us trying. I know God has a greater plan than I could ever imagine, but I am starting to get frustrated. My Husband is in the military and we will be stationed 3 years in Japan starting July. I want to get pregnant this month so I can stay a little longer in the United States to have my baby where I have family.