I have a seven month old, so this was a pretty recent issue for us.

The key is really just to listen to your body. As your pregnancy progresses you will get some odd and interesting aches and pains. If it hurts (in a non-sexy way), stop doing that.

Common sense is to not include any blows to your belly, but the reality is that, especially in early pregnancy, the baby is pretty insulated in there. Of course you want to avoid blunt force trauma, but a wayward flogger tail or slapper or something isn't likely to hurt anything.

We avoided breast bondage as to not interfere with milk duct production. We did still do some nipple play, like clamps and stuff.

As you progress, you will get to a point where you won't be able to lay on your back because the baby will press down on an important artery in your body. Pregnancy books say it is after 20 weeks or something, but believe me, you will know it when it happens. After about 34 weeks a couple of minutes of laying on my back would leave me nauseated and dizzy.

That is really about it. The only other thing is that during pregnancy I found that my pain responses were very heightened, and I could handle a lot less pain than I had previously enjoyed pre-pregnancy. So again, definitely listen to your body.... and maybe be willing to try things again after your baby is born and your hormones are back to normal.

Oh... and that leads to one more last thing (lol). Get your fiance to read up on aftercare. The hormones mess with you emotionally quite a bit, so he needs to be prepared for some big highs and lows on your part. I don't think I had a single orgasm while pregnant that didn't cause me to burst into tears.

Congratulations on your pregnancy, and welcome to the forums. If you have any more questions I would be happy to answer them, either in this thread, or in PM.

I wish you well,
-lily