BFP after miscarriage in April and so scared!

An
I finally got my BFP after a miscarriage (1st pregnancy ever) D and C in April...I have been having mild cramping down there and kinda felt like my body is getting ready for AF, but it is somehow different. So I took a test today (2 days before AF) and got a BFP and I'm trying not to freak out...what if I still get AF? Why did I take it so early??? My husband is away till Monday so I wanna tell him tomorrow but I'm scared bc of before... I am so happy and excited and scared at the same time...the cramping worries me so much...it's not like AF cramps but i don't remember it last time either. Just a little worried...