pregnant and worried

so I've literally just found out that I'm pregnant, af 3days late.. I've had 2 misscarriages before this the first was a chemical and the second was a blighted ovum, I got to my first scan and there was nothing there but a gestational sac measuring 4 weeks 😟 I was supposedly 11 weeks at the time.

I also have pcos which doesn't help.

So this time I am freaking out again because i am so worried it will happen again, does anyone have any nice stories of misscarrying and going on to have a successful pregnancy? just feel a bit down about it all when it should be a happy time.

would really appreciate some advice x