Dr appointments

So after 8 months and my fiancé working away I decided it time to get a little extra help since he's roster is about to change to 4:1.
​My doctor has taken a bunch of swab and blood samples and I have an ultrasound on Wednesday but she thinks it may be harder than we think being I am extreamly irregular and I haven't been able to find any kind of pattern in the whole 8 months of trying. 
​Anyone else have some extra advice, feeling worried and anxious and going through this alone 70% of the time can be a bit stressful ..