Driving myself crazy with worrying

I found out I'm pregnant a week and a half ago. Cycles were very long so can't really work out but I think I'm about 5-6 weeks. First doctors appointment isn't until Sept 23rd so another week to wait. I don't really have any noticable symptoms and I'm really worried. I'm very tired but my job is really demanding and I'm on my feet all day (early years teacher) so I can't tell if I'm more tired than normal. My nips are sensitive but I wouldn't say painful. How do I get through the next week 😭😭