Irregular cycle after D&C

Hello everyone. I’m having issues with my cycle after miscarriage. I know that this is not medical advice but if anyone can help me with advice if they have experienced this it would help. My husband and I found out we were pregnant on July 30 of last year. About two weeks into the pregnancy I started to experience cramping and went to the er. I was told I was having a miscarriage. This would have been my second pregnancy, we have one son together that’s 16. Well I did miscarry and I had a D&C. It took a while for me to have a cycle. When I did it stayed one almost a month!!! Then I had a regular cycle. Then my next cycle came and stayed on almost 2 weeks. My period is normally 5 days. The next month I had two periods. One at the beginning of the month and another at the end. I have been given hormones after the procedure, I was told that’s what cause my long cycle. Now I am taking vitamins to help get back on track. We are currently in our fertile week and Ttc. Any advice? (My first pregnancy was not planned. We were teenagers.)