Trying for pregnancy after miscarriage

My husband and I were so excited to start trying and were amazed when I was pregnant only after 2 months of trying . We didn't tell anyone ( trying to be careful ) and waited till 8 weeks to tell our families . They were ecstatic ! But 1 week later ( 9 weeks ) I miscarried . It was awful and incredibly  sad. But we are now trying again and I'm starting to get frustrated  with the lack of progress. It has been 4 months of trying and nothing yet . I know I need to not worry but it is disheartening when we got pregnant so quickly the first time . Anyone else experience this ?