I'm only 4wks and 4 days pregnant, and after doing a fair bit of walking around the shops in my lunch break my pelvis is in agony. In my previous pregnancy I suffered badly with SPD to the point where I was wheelchair bound from 26 weeks, but that pain didn't start until I was 20 weeks. Can it really be starting this early?? I've also felt nauseous for the first time today - can the hormones kicking in cause the SPD to kick off?