Ttc from 2 months, had sex during fertile days.still no pregnancy. wat could be the reason. cycles are regular but this month periods came 5 days late?

Fertility: Trying for 2 months and not conceiving may not mean much. You may need to try longer. Typically infertility is diagnosed if trying for 1 year if younger than 35 years or 6 months if older than 35 years. If there are abnormalities such as cycle irregularity, evaluation can can be initiated sooner as time may not help in these situations. Good luck.