Hi, Thanks for the query. I undrstand your concern. Your menses problem last month could be.. - stress durung sex causing scanty bleeding from formed endometrium ... ready for menstrual bleeding OR the bleeding might be from carvical errosion..being irritated due to sexual act. -Now this month you have just scanty bleeding ... no menses followed. In child bearing age... this can be early pregnancy . having implantation bleeding. Pregnancy can be confirmed by home pregnancy test after 8 days delay in period. * In case it s not pregnancy &period is delayed... you need toconsult a gynecologist for . -Medication to induce periods. - followed by 3 months cyclical oral contraceptive pills to regulate period OR Investigations to find cause for menstrual irregularity ( Ovarian ,thyroid problems,pcod or fibroid uterus or severe weakness ) followed by specific treatment. Thanks.