Tmi/ advice needed plz

hey ladies,

I'm 27 currently ttc with hubby. During my fertile window we bd quite a bit. Here I am two days before af and I pee and see this in the toilet. the top discharge (maybe tissue) was covering a small like clot. all lightee pink. not sure what it could be. We bd last night and I woke up this morning with mild-moderate cramping.

also had a yeast infection last week which is totally uncommon for me. took a pregnancy test yesterday and got a bfn but my af isn't expected for another couple of days. has anyone ever had this happen?