first month TTC

We decided to start trying this month, but my husband didn't want all the pressure, so no ovulation test or taking my temperature. So I have relied on glow to estimate when I ovulating. I stopped the pill after my September period, where I have always has regular periods. My October period was not my normal 28 day schedule. Should I change my cycle legth to 30 days instead of my typical 28 to try to get a good fertile window estimate? I am in the 2ww and excited to find out! But also nervous I either didn't ovulate or estimated wrong. Any tips would be helpful. Thank you!