How Long Did It Take For You To Conceive After Depo?

I've taken the depo once, and I was bleeding from aug. 2013 until April. 2014, then switched to BC Pill for one month. AF stopped for two months JUNE then if came back at the end of the month JUNE. Now I'm bleeding JULY- AUG. With a lot of pregnancy symptoms. I took tests, it's negative. Two weeks ago, I spotted brown blood did a week, now it's blood red. My body temperature has been very hot.