Can hcg be present even if you are not pregnant? Last intercourse 14th july. Was on pills. Pill pack ended on 28th july bleeding from 1-6aug. No pills or intercourse after that. Hpt with first morning urine with different brands at 4,5,6,7,8,11,12 weeks after intercourse all negative. Next period was due on 1st sept as it did not occur till 8th did a bhcg and usg on 8th sept (9 weeks from last intercourse and 10 weeks after july period) bhcg was 0.11 and usg showing pcod. Hpt again on 12 weeks 6 days negative. Can bhcg present even if a woman is not pregnant? Will it be 0 or 0.11 to be considered as negative. Does redo of test necessary? Can I be sure their is no risk of pregnancy if my last intercourse was on 14th july and bhcg on 8th sept is 0.11?