Can't help but worry

I'm 4 weeks and 5 days as of today and so far I've had bad cramping, naseau, sore boobs, I caught a cold that finally went away, bad head aches, dizziness, hot flashes... And a few more. I can't help but think I'm going to miscarry with all this stressful stuff that's been going on in my family lately. Then my friend told me she was pregnant too (about a month too) yesterday and this morning she went to the hospital and she told me something's wrong with her baby. Like it's not growing right and that she's going to planned parenthood to get it checked out. Idk why but that scared me bc I feel like something's going to happen to me next. 😓