Im just too scared

I am pregnant per a home pregnancy test. If it goes by my last period im almost 6 weeks. I am still in disbelief. We did not plan this, we did want another but not try til july/August. I didn't think i could get pregnant without pills because i have PCOS. but since im a magnet of bad luck i cant get out of my head i will have a miscarriage again just because this wasnt the plan. Every cramp im having makes me worry. Every time i feel something is coming out i rush to the rest room thinking "it happening". But its always just mucus with some pink in it, which then leads me to believe it will happen just cuz of the pinkish tone. I cant get over my fears