My first pregnancy I had no bleeding, but resulted in a missed miscarriage at 9 weeks.
I had bleeding around 6 - 8 weeks with my 2nd pregnancy.
Also went for countless blood tests to confirm all was okay. And it was also around this time of year and doc was away on vacation so couldn't see him until the new year!
He tested my progesterone which was somewhere around 70 and didnt feel the need for progesterone. This is a grey area where there is no certainty that a progesterone supplement can successfully do the job of natural progesterone.
Anyway, I didnt bleed again in the pregnancy.
But if it carries on into 2nd trimester, they would have to investigate further.
The gynae will be able to tell by your next scan if you have a low lying placenta which can cause bleeding.
Alternatively they may have to check for fibroids down the line and treat you as higher risk.
For now just take it easy!!! Try work from home till the end of the year if you can, by the time you come back you'll be past 9 weeks. Every time you feel yourself tensing, or pushing yourself too hard, take a moment to relax and catch your breath.