I’m getting really nervous please help

So my period is 5 days late and i never spotted yet. I got my FIRST Depo shot LAST MONTH! My body feels really weird, I’ll get cramps near my belly button. Then it will shift down. Sometimes it will be way up from my belly button. My stomach is NOT hard. I’m squishy but I just have a feeling I may be pregnant! PS. I over think way to much. But its so weird why I have all these different cramps at different

Places. My boyfriend an I did have unprotected sex 3 times but he pulled out an I seen the cum. I really just wanna know other people signs of the shot working. Is it working or am I pregnant?