How soon after a misscarraige can you have sex? The epu said as long as i hae a negative test its okay to start trying again. I had a mc at 5 weeks,they said my hcg levels were only 27! So ive done a test an its obvs negative. We dtd yesterday so it had been a week since the bleeding started. Obvs all bleeding has stopped but ive have a few stabbing pains in my lower left side and now im worried its caused an infection? Am i just being paranoid?!?