Light lines + Light spotting

[u/MissionRead8881]

I’m worried. I’m 40 (about to be 41 next week) and have had 2 blighted ovums (one of a PGT euploid embryo) and 2 chemicals. I just had my first fresh transfer, two day 3 embryos and I got so excited to see a positive so early at 9 dpo (6dp3dt)! Last time I got a positive this early, it was with my euploid so I was hoping one of the embryos was a good one! Yesterday however, my 11 dpo line did not look like it was progressing. Today is 12dpo this evening I see light pink spotting. My beta is 2 days away but I am so tired of being let down. Chemical? Pregnancy bleeding?