Super light AF question? Any advice??

Gemma
I came off the pill 12 months ago and it took ages for my cycle to regulate... It's now pretty regular in terms of cycle length, but so light that I don't even need to use tampons at all, and it only lasts 1 or 2 days.... OPKs and BBTs are positive for ovulation, but could the really light AF effect TTC? And could it affect pregnancy