Firstly, congratulations on your pg! You must be so happy after TTC for 16mths.

The spotting you are getting is probably an implantation bleed as your HCG levels are rising so not likely to be a m/c. I got this around the 6wk mark with #1 and like you I was worried too, but the Dr reassured me what it was. The cramping you are feeling is probably just your uterus stretching and growing above your public bone now, which is maybe why you feel bloated. So long as this stays mild, I'd not worry too much. If you are ever in doubt about anything, ask your Doc, he should help you.

The vacuuming bit is an wives tale i think. I did the vacuuming with all 3 of my pg's and nothing happened. Luckily you may not even get m/s. I never had it bad, just slight nausea most days. Make the most of it while you can LOL!

I hope I've helped you with this Pelaja.