Mittlesmerz is ovulation pain which occurs about 14 days before mensus. so the late onset can be because some women start ovulating late, the initial cycles are anovulatory. this is a normal phenomenon, there is nothing wrong with this. This pain cannot be due to hernia
, so no need to worry about that. Stop being apprehensive about it. You can take a antispasmodic and analgesic
for the pain.