Any opinions or advice?

Autumn • Mommy of three. Wife. Christian. And loving life! 💜💙💙
Hey ladies! I'm just wondering about a few things that maybe you can answer or give me some advice in. 
I was on the depo shot for about a year and a half. I stopped taking it in march and I finally got my period in August. Me and my wonderful husband have been trying from august till now. But I am 7 days late this month and all I have been getting is BFN's😞 
Should I wait longer and test again to see if I get that BFP? Very nervous to get another BFN.