18 dpo CM

Hey ladies, glow says today I am 18dpo still no af my cycle is usual spot on or around the date glow prediction. I had a miscarriage in april but I have had two cycles since but this month I had mid cycle bleeding which I have NEVER experienced before. I have been taking hpt since 11 dpo all BFN 😣 so I have finally accepted I am out. This morning I had sex so when I went to clean up (here it comes TMI) what I thought was semen I was wiping out was actually A huge egg white glob of CM it was so much I could feel it stretching out of me 😵 I couldnt snap a picture of it because my bf was standing there looking at me crazy. Could this mean this could be me fertile window?