ovulation bleed

Leigh
I'm 33 and TCC for about 7 months. Last month had a mid cycle bleed - never had before so I thought it was an implantation bleed. Sadly not. This month light bleed again, so I'm assuming it's an ovulation bleed?  Seems my cycle has finally gotten in order after stopping the pill. 
I was on the pill since 17 and was obviously super regular so this mid cycle spotting has been so annoying and weird. Hoping it's a good sign though, that everything's working ok. 
Does anyone else have ovulation bleeds? How long does it normally last?