depo help plz ttc#3

Kaylie • Luv my kids! megan, yiannis, jack! Rip dad 20/3/43-09/07/15
I was due my last depo 5th june didnt have it due to ttc#3 its been 7 weeks since i was due it ive had two light periods in july 4-6 and 16-18 is there a good chance of us conceiving ive been taking vitamin b6 and folic acid