I been trying ....

Me and my fiancé been trying to connive for a year and a half then we prob got prego not to long ago but then I had misscarried , they had told me it was a lot of stress round the whome so that was the reason now we trying again and I'm starting to loose hope :( Idk it's so hard after I jut misscarried I want to know if u guys have any advice for me and my fiancé ? It will help a lot please and thank you for ur time