Hello, Thank you for posting this query, I reviewed if carefully. If I was your doctor I would recommend to do a pregnancy test, so you become sure that it is not a miscarriage. The HCG levels in the urine (the hormone who gets produced since the first days of conception) should be low, but enough to show that it is/has been a possible pregnancy there. Every method of contraception has a possibility of failing. 1) If the test is positive, I would recommend bed rest for 24-48 hours. The spots may be part of a normal pregnancy sometimes, so just rest may be enough to help it. Miscarriage also, happen often and mostly without any reason in the first months of pregnancy, and usually don t need medical recovery. If your cramps get worse, of fever starts then you should see a doctor to rule out complications. 2) If the test is negative, it may be an irregular menstrual cycle, which happens from time to time in woman who have had lots of stress recently, or lost weight, ect. In this case, you should not be worried, because most probably the menstruation may happen the expected date of the next month, with little irregularities. If the irregularity continues for more then 3 months, then its the time to see a doctor. Hope this helps, Take care. Dr. Klarida