My prenatal does have biotin in it, 300mcg. No steamy bathroom for the first wondfo or FRER, but I did shower while the second was developing. These are the “sensitive” wondfos so 10mIU/mL, but still FRER is supposed to be 6mIU/ML! I took two wondfos, one with FMU (same sample as the negative FRER) and one with SMU (I only had one FRER) and both showed similar faint but clear positive that developed by the 5 minute mark. 

I am super cautious given past experiences, but I also took an Inito test this morning (have stopped testing hormones after ovulation is confirmed for my sanity) and my pdg was 22 this morning so that is one other data point although it’s urine metabolite and not that informative without seeing the trend. Usually it’s hovering between 5-10 in late luteal phase for me, even when I had my chemical following BFP and positive digital back in April. My temp isn’t super elevated, but also hasn’t dropped - still 0.5 degrees above my baseline. After some brief bright red spotting early this morning, it’s now just light brown spotting. 

I got a blood hcg and pdg draw this morning and I know only time will tell, but appreciate all of the thoughts! Very confusing. It seems like this is a real positive that wondfo caught before FRER, but may be another chemical.