Has anyone experienced bleeding during pregnancy?

Je
Hey mums !!
I've recently had one of the biggest scares of my life.
5 days ago (Tuesday)I woke up with abdominal cramping and heavy bleeding at 6 weeks pregnant.
I have since been to the doctor
And got two blood tests 
Tuesday hcg was 12500
Thursday hcg was 17846
Doctor was happy that things were going along ok & that it wasn't a miscarriage.
I have an ultrasound booked for Monday to check how everything is going.
But I am wondering if there are other woman out there who have or do bleed during their pregnancy & if the cause is known, why?
I'm just looking for answers, this will be my first, my SO & I have waited for this for a long time. I'm just looking for other stories and guidance. Thank you all in advance ❤️❤️

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors