I need some advice

I took this yesterday as my period was due on the third it didn't come then I notice I had some cramping in my pelvis and back then this morning I woke up with brownish she red blood it's not heavy I am still cramping but it's not even soaking the liner I have on I am just afraid that I not pregnant and it's my husbands first baby and I don't want too see him hurt he wants to be a dad please someone give me advice I don't remember any of this with my other two pregnancies