This is confusing

Noelle

I was on the depo shot for about 2 1/2 or 3 years. From July 2012 to May 2015. My periods didn't start again until March 2016 and they have been perfectly regular and the same since (even the same as before the depo). My husband and I were honestly TTC about six months ago. Since, I've given up on trying but we don't wear protection most of the time and I would still love a baby if it happened. We have had a few thoughts of it happening and then my period comes. Last month, my period was 15 days late. This month my period is ten days late but since it was late last month, technically it isn't due for another three days. I have SO many symptoms of early pregnancy. My husband and his best friend swear that I am this time and of course I have small hopes but I'm reluctant. I don't want to think I am because I guess I don't want to be disappointed again. I'm scared I can't get pregnant or stay pregnant (as I had a miscarriage about seven months ago) because of the depo shot. Any comments on the depo, when I should test or anything would be appreciated.