If your partner' part is not touched your private part and there is no spillage of semen on your private part not to worry. Investigate your self for irregular periods.

Hello, irregular periods and low blood hemoglobin with negative pregnancy test are not the sign of pregnancy. There are several cause for irregular periods like excessive physical or mental stress, change in diet, change in daily routine or any infection or PCOS or any abnormal growth in uterus. And pregnancy test becomes positive(starts from 21st day) only from 28th day of your normal period, if you are pregnant. So please consult a gynecologist to investigate for irregular periods.