greymoose re flying. In my last pregnancy I flew at 14/15 weeks and at 26/27 weeks with no issues. I believe you are restricted by some travel insurance companies from being insured to fly after 28 weeks (some 32). Relevant if you're booking a holiday! (I didn't plan to fly at 27 weeks BTW, I was further on than we thought when the hol was booked).
But in terms of early pregnancy (ie now!) I think most people would say it's fine. However I have a feeling that some jobs such as cabin staff are grounded when PG. Also, anecdotally I have a friend who travelled a lot with work and blamed an mc on too many flights (but she was also under a lot of work pressure so...?)
If you want a more qualified answer, ask your GP maybe?