Cycle day 23 after MC .... Still no ovulation

Today is cycle day 23 for me after miscarrying at 5 weeks.  I had spotting on Friday and Saturday that I thought could be ovulation spotting as I experienced some pain on my right side and there was lots if cm... However STILL no + opk.  I usually get a + on cycle day 15 and my cycles are about 31 days on average (give or take) anyone had a similar experience or have advice??!