Blood tinged discharge / light cramps <5w5d>

M • Baby #2 due Aug ‘18
Hi girls.
I'm getting worried (again) because I got more discharge today and I could see streaks of blood. I panicked, but I know nothing much could be done..
Then a few hours later I have some cramps, light and it got a little intense (more like period cramps kind of feeling) for about half an hour or so..
Is it normal? Did many of you get pink discharge / bleeding & cramps and everything turned out fine?
😞