Hello everyone! We've been planning for three months now with my husba…

Hello everyone! We've been planning for three months now with my husband. Unfortunately, every month five days after ovulation I get a cold. The previous two cycles were unsuccessful, and in the last one there was a seven-day delay, as it turned out - just a cycle disruption, most likely due to illness. This month I got sick again after ovulation, took pills only for pregnant women (the doctor prescribed them). Today is six days before menstruation, I did a test and it showed a weak second line. What do you think this is?