My pregnancy tests haven’t been getting darker or fainter for a week. Did hcg privately - 80mui/ml, went to epu on nhs, they did hcg which was 80 again and progesterone which was 39. Going to have another blood draw this morning but interested to see if anyone was in a similar situation with hcg not going up or down? No bleeding, no cramps, on the scan they saw a 17.5mm lining. How long can it take for miscarriage to start? Thanks