Hello,
As you might be aware that woman with regular cycle, day 10 to 20 of the cycle is the most fertile period of the cycle.
If you happen to have unprotected sexual activity in this period then you stand chance to get pregnant. As per your history, your fertile period was between dates 5 to 15 of the month.
Accordingly, if you are pregnant then it would be due to unprotected sexual activity in this period. I hope you can make out that sexual activity with first partner will be responsible for the
pregnancy.
If you have history of regular cycles, and if you have crossed your dates then please get morning's first sample of urine tested for pregnancy. In case of any doubt blood
beta HCG test and USG will be of help.
If you opt for termination of pregnancy with
abortion pills under medical supervision safely till 9 weeks of pregnancy.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Purushottam Neurgaonkar