Yesterday I Had Unprotected Sex. Condom Malfunctioned. 25th Sept Was

yesterday I had unprotected sex. condom malfunctioned. 25th sept was the last period. there are no ECP's available in Dubai. So on an online forum I read that 4 marvelon 21 tablets taken aSAP and 4 more 12 hrs later would be as effective. she complained of stomach discomfort yesterday noght and today morning. however 4 more tabs were taken today at 9.15, 12 hrs 15 mins later. are side effects normal. and are there any chances of an unwanted pregnancy?