Miscarriage anxiety.... Help?

Roslyn
I am stressing and worrying. I am experiencing way more symptoms this time than I did with my daughter. I am so worried that it might be a bad sign. I didn't test till I was a week late and had been very nauseous all day because I didn't want to get my hopes up. My periods are wackey to begin with. I took a test at night and it popped up instantly. My boob's(mainly nipples) have been super sore. I didn't experience that with #1 I also didn't get morning sickness or nauseous until I was 8 weeks with her but I am only 5 and it gets me everyday. I wasnt cramping all day today but all of a sudden my sides are cramping, should I be worried or just stretching of the uterus? Also another thing that is making me feel this way is that I wear a pad all day and when I go to the bathroom I have tanish color discharge on the pad but when I wipe you can't see anything. In 1st pregnancy I got diagnosed with bv twice towards the end of the pregnancy do you think the discharge color has to do with that and is anyone else experiencing similar symptoms?