When to talk fertility treatment

My dr said if we try for 6 months and don’t get pregnant to come in to talk about fertility testing/treatment. It’s been 4 months and nothing yet (we had a mc in January), but my partner has a low sex drive and we only bd once or twice in my fertile window, usually on the day before ovulation and maybe one other day. Should I still talk to the dr after 6 months or should I give it a little longer since we don’t bd that often?