A medical tidbit that seems less well-known than it should be:
To begin with, I'll start off by explaining pre-eclampsia (very briefly). Basically, some women who are pregnant develop a high blood pressure and start to lose protein in their urine. Swelling is also really common - but then, swelling is pretty common in pregnancy already. Sometimes, pre-eclampsia can progress to... right, yes: eclampsia. The woman gets seizures, can lose the baby, die, etc. It's actually the number one cause of maternal death worldwide (not here, though).
Now then - it turns out there're some things that decrease the chances of a mother developing pre-eclampsia. Some are rather odd. The first: smoking. About the only positive effect of smoking. Certainly the only one in pregnancy. (For smokers: it also increases your chances of delivering pre-term and of the baby being too small. So, the benefits don't outweigh the risks).
The second? A new father for the baby! Turns out that if a woman's had pre-eclampsia before, it could be in part due to the dad. In fact, if the dad's mom had pre-eclampsia when she was having him, he's more likely to cause it in the woman.
Third reason, which is somewhat related... oral sex. Not just any oral sex, though. Swallow. It's important. How's it related to the above point? Well, technically its not the oral sex or the swallowing that's doing it (I was trying to be dramatic). The more exposure you have to your partner's sperm, the better. (Skin exposure doesn't cut it.) That's how the father is responsible for causing pre-eclampsia in the mom. Condom use results in a higher chance of getting pre-eclampsia. Pregnancy during the honeymoon (assuming you've not had sex before then) is bad, too.
And there you have it. Sound medical advice for avoiding pre-eclampsia. (Brought to you by Dr. House... I mean, Dr. Chaffin.*)
~DD
*Inside joke - But seriously, one of my attendings here is Dr. House.