Good for you! There are actually a few of us currently pregnant and breastfeeding - we've talked about it a bit recently in the 'extended breastfeeding' sticky thread in the toddler time section. You might be surprised, as your first trimester comes to an end you might find you have a bit more energy (when I was around 10 weeks I *had* to have a nana nap every afternoon, but now - somewhere between 14 and 17 weeks - I don't usually have to have one).
I'm not 100% decided whether I'm going to wean JJ or not - actually I'm half hoping he'll self wean at around 5 months pregnant when the milk changes, but I also quite like the idea of tandem feeding because I wanted to feed JJ until he was 2 or thereabouts (in line with the WHO guidelines). Plus I'm a big fan of child led weaning as long as the breastfeeding relationship continues to be beneficial for both of us.
There's lots of good info on feeding during pregnancy and tandem feeding on this website:
nursingtwo.com
ETA - and welcome to OHbaby!

Edited by weegee