Hi Cers. Even though you were only 7 weeks, you are your partner are bound to be upset - you have still lost your baby. It is a terrible loss at any stage, and I really feel for you.
I found at at 7 weeks that we had lost ours too, but it was a fortnight before I had the ERPC, just over a week ago now. I spoke to my GP last week as I had developed a mild infection and we discussed TTC again. She said that she would certainly wait until I'd had a period as this ensures that everything from miscarriage was completely out of my body and that I would be starting afresh. Having a period would ensure that there was no womb lining remaining from my previous pregnancy. She said that there is a very slight (and she did emphasise that it was very slight) increase in likelihood of miscarriage if you don't wait to have one period before TTC again. I know there seems to be mixed opinions from doctors on this point, having read other people's posts on this and other sites, but I have decided to wait for one period before we try again - as I do understand her theory of ensuring that my body starts afresh with the next pregnancy, and after all it will only (hopefully) be a few weeks before I get my period. It's not long in the scheme of things. I also think it will give my partner and I chance to enjoy sex for the sake of it for a few weeks rather than putting pressure on us to be trying to get pregnant. It's been a difficult few weeks, and I just want us to enjoy the intimacy together again without any pressure.
Only my opinion anyway, I know other people think differently and have had successful pregnancies after miscarriage without waiting for their first period.
Good luck with whatever you decide. Sorry for your loss. x