Hi B., I have two sons and got pregnant with the second when the first was only 6 months old (and I was still breastfeeding). It had taken a couple of years and 2 miscarriages to have the first, so I figured I would not use birth control and just be happy if/when it happened again. My doctor told me if my body was able to get pregnant again then it was "ready" and healthy for the baby, just be sure to take your vitamins and eat heathy and (ha ha) get enough rest. I had a lot of aches and pains, lower back especially, but wasn't sure if it was because I gained so much weight with each one (60 lbs with first, then lost about 50, then gained 50 back with 2nd). Just a lot of extra weight to be carrying around and hard on the body! I don't have any magic advice for you, just try to enjoy the good parts of being pregnant, and know the bad parts will end as soon as you deliver (or they did for me anyhow). Also, the first year or so will be very difficult - not bad, just exhausting. Once the youngest starts crawling and walking and is able to play with the older ones life gets much easier. Good luck, and try to enjoy every day because they grow up so fast!