I think I'm starting to spot ??!

Massy • Mommy of preemie twins born at 29 weeks with IVF fresh transfer
I was getting creamy cm, now just went to the restroom and when I wiped very small amount of spots ??????????, AF due in 2-3 days . I am 10 DPO today, can it still be IB????? Idk I'm so sad, nervous and anxious I don't want another BFN ??