Girls, hi! Can you tell me, because I can't remember. In April, I had …

Girls, hi! Can you tell me, because I can't remember. In April, I had critical days. In May, there is none. The calendar shows a 2-day break. The test is negative. The baby is mixed. Menstruation after childbirth if it comes, doesn't it immediately establish it, at least once a month (I'm silent about the days - hormones still fluctuate, right?). Or maybe they will disappear again? Should I see a gynecologist? Or should I endure another month?