Worried my hcg levels are not good

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Ladies I had a positive pregnancy test when my period was due two days ago. So I had HCG test it was 538. Today I’ve repeated the test which would be 48hrs and my results are only 1278 I’m worried becouse I suffer from recurring miscarriages. I’ve been trying for 6 yrs and currently have no children. I’ve had all the tests done and problem in the results. I’m just so desperate. Any ladies with similar numbers and positive outcomes. 🙏🤞