I'm on holiday abroad at the moment, and I was meant to get my period on Monday. Because I was flying, I was half-expecting it to be early (that's what usually happens) but in fact it didn't come until Tuesday. I'm usually so incredibly regular. I'm now on day 4 of my period and it's lighter than usual but still the right colour and everything. It feels like every day of the period has come one day early.

I've never had unprotected sex with my boyfriend - we always use condoms, and we always check to see if they've split afterwards.

When I started, I had just been struck down by a holiday bug so I spent the whole day in bed - could this have anything to do with it or should I be taking a pregnancy test when I get home? I had my usual stomach cramps on the first day, but I don't know how much of that was down to the illness. Thanks!