Month 5 of ttc....any more tips???

Sooooo I'm now into month 5. Af is actually still being a lil whacky and was super long buuuut I'm currently on cd 11 taking all the vitamins known to man as well as opks.I got a positive opk on cd 19 last month but af was late showing up which makes me think I may have a longer second phase. So does anyone have any other suggestions to help????? Really feeling sad and down hearted now would just love a 2015 baby xxx