Postpartum periods

It’s been just over 2 months since my son was stillborn at 40 weeks. I got my first period at 5.5 weeks postpartum. It was very different from my periods before pregnancy. It was light, no clots or cramps, and lasted 9 days. I got a positive ovulation test a couple weeks after, so I was excited that my body was getting back to normal so I can get pregnant again. But then 4 days after that positive ovulation test, I got another period, exactly identical to the one before. I’m on day 7 now, and it’s still light but bright red blood. I’m frustrated because I want to have normal cycles so I can have some hope of getting pregnant again. Losing my son left a huge hole in my heart, and since his funeral I’ve put all my emotional energy into having another baby. Not to replace him, but since we tried for 4 years for him, I wanted to start trying ASAP. I had pcos before, so my periods were really far apart, and now they’re too close together. Has anyone had a similar period after having a baby?