Feeling let down

Long story short, I miscarried at 10 weeks last August (baby was 8 weeks 4 days) went thru an unsuccessful d&c after we found out the baby was gone. About a week later I naturally miscarried. Took a 2 month careful phase of using condoms. Been ttc since and no luck. I try to keep track of the signs of ovulation and try to have sex within that time on a regular basis. I do have a doctors appointment tomorrow to try to get some help. Anyone gone thru this then have a successful pregnancy?