What’s the latest you have gotten a bfp??

My husband and I have been trying for our first child for over 3.5 years and have been planning our first

IVF

cycle for August.. so we would be completely in shock to say the least if I am pregnant, but I am curious to see other opinions..

I’ve been late before, however this time it’s a little different. I have no noticeable symptoms except that I am late by 3 days. I took a pregnancy test yesterday and it was negative. Friday night my husband and I had sex and there was a little blood on him so I thought I was starting my period 2 days early, but there hasn’t been any more blood except for tonight when we had sex again and now it’s gone again. 😫 ugh so confused 🤷‍♀️ maybe one of you ladies can share some insight or have similar stories??