I got mine about 2 weeks after the pp bleeding too.
: I thought I'd get at least a 6 month reprieve, but no. My girls nurse a LOT too. I think I'm just ultra fertile (which I'm thankful for--I know lots of twin mommies who had years and years of heartache trying to get pregnant, but I just have to be really careful). I'm afraid if I got pregnant again, I'd have triplets.