10 and a half weeks pregnant and brown blood!

Jade
I am 10 and a half weeks pregnant and I have just woke up from nightshift with brown blood in my underwear. There was nothing when I wiped and nothing since, no cramps either. Is this normal? 
I am just panicking as I had horrendous severe cramps all the way untill 8 weeks where they thought I may misscarry  and I'm just worried as this is the first bit of blood during my pregnancy
I have rang emergency gynae and they just said to monitor and if it got worse to ring in the morning and go for another emergency scan. 
I'm just looking for a little reassurance, first time mammy here and I'm super excited and it's hard not to panicking!