I am 9+1 weeks pregnant with my first DC.
I had a MC towards the end of last year (very early one at about 6 weeks).
Since we've found out we're pregnant, we havent had sex but (sorry if TMI) I have been pleasing my DH in other ways! 
I have managed to abstain from allowing DH to perform any sort of oral sex / foreplay etc., on me - until last night!! We didnt have prenetrative sex but I did orgasm and now I'm slightly worried as I've read about how MC could be brought on by orgasm (as it causes contractions to the womb) and as I've miscarried before, its now on my mind.
I feel absolutely fine, there is no bleeding or changes in symptoms at all so no reason to worry - just want some reassurance I guess and wondered what everyone else is doing in terms of sex / masturbation / foreplay etc. Is it best to just abstain - for 9 months??!!! 