<s>[INST] i had sex with my boyfriend 15 days back , we used the condom but it slipped , and now i missed my date yesterday...generally i dont miss my dates on the contrary i get it 2 to 3 days earlier...but now i m really very confused of being pregnant please suggest me what should i do ? or how will my date start.....? [/INST] Hi dear and thanks for your query.If your cycle is regular and if you haven't had any delay periods ,you should get a pregnancy test to rule out pregnancy.If the test is positive than consult with a doctor to have other examination done ,like transvaginal ultrasound .If the test is negative there are many other reasons  that can cause delay periods .You can take dufaston 10 mg 2 * 1 per 5 days ,to breakthrough periods.ALL THE BEST </s>