Reoccurring chemicals 😢

I keep getting positives sometimes strong ones and then I get my period. Every since my d&c; in June. I have had at least 3 chemical pregnancies. What is wrong with me!!?

I'm about 7 DPO and I think I got a positive yesterday but I'm too scared to check again today. I'm tired of being happy then getting AF anyways. My heart can't break anymore