Ovulation soon after miscarriage?

Abbie
I miscarried at 6 weeks 2 days on September 30. It was all natural and happened quickly. Much heavier and more painful than a period but only for a day. The rest of the bleeding ended on October 4th. A pregnancy test was negative yesterday so my doctor said my levels are at 0, but not sure when they actually hit 0. Anyway, I'm having my typical ovulation cramping along with the egg white mucus. OPK was positive. All the <a href="https://play.google.com/store/apps/details?id=com.glow.android">fertility apps</a> show ovulation occurring now if bleeding on Sept 30 was a period ( I know it's not the same as a period but the app doesn't have any other way to count the bleeding). Does this seem similar to anyone elses experience? Just wondering if I'm reading too far into it or if my intuition and the test are right.