Progesterone levels

Is there any way to naturally strengthen/increase progesterone levels? I read that mid cycle bleeding (that isn’t related to ovulation) could be due to low progesterone so I was wondering if there is a vitamin/supplement I could take or even foods that can help strengthen my levels. We’ve been TTC for a little over a year and I had to have cryosurgery on my cervix back in October to remove my cervical dysplasia so I feel like we are back at square one and starting over. Just last cycle I had spotting that started 5 days before AF and stopped then started again 2 days before AF then stopped again then AF came the following day. My cycles, on average, are 28 days with the occasional 26-27 days. I also always get a peak on my OPK every month so idk what exactly would have caused that spotting.

Any help or advice would be appreciated.