TTC after 3 consecutive miscarriages

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hi, I am in the middle of my 3rd miscarriage this year after 2 healthy babies. My dr. does not think it is necesary for me to see a RE even though I have had 3 losses. he thinks it's just bad luck and we should keep trying. I am 30 with no reproductive issues previously. I have very regular periods abd have been getting pregnant first month TTC. the issue has been staying pregnant. I'll also say that since my MMC in August (9 weeks) my period has been super light. this latest miscarriage (6w 2d) was also light. No heavy bleeding and just a couple clots/tissue, no cramping. Yet when I went for a scan today the dr. said my uterus was almost empty. Does anyone on this thread have similar experiences or thoughts on things I could do to improve the outcome?