"Normal" period?!

Bunny

Hi ladies! I'm looking for some input. I was on the pill for 15 years. I've been off the pill for almost 2 years now, also actively ttc with no luck. Before going on the pill I remember my flow being "normal" and regular. However, since going off the pill my flow has been light (using light tampons) and lasting 2-3 days max. I usually spot 1-2 days prior and the start of AF is usually brown (sorry tmi). I'm beginning to think that maybe the reason I'm not conceiving is due to my flow?! Also my cycles vary from 25-28 days. Anyone in a similar situation?! I have had testing done for infertility and my resents are normal. I'm just at my breaking point and need some answers. Any advice would help! Thanks!