I didn't notice one with DS until AFTER he was born. I thought it was so odd that I never noticed it while pregnant but it was plain as day after he was born. I think it went away within a month or so.
34 weeks and I have fairly dark skin but nothing yet. Interestingly this time is supposed to be a girl and I had a pretty dark one from pretty early on with my previous 2 pregnancies that were both boys.
Re: No linea nigra?