I 'm sure it'll be fine, the folic acid is really important in the first few weeks of pregnancy. If I remember correctly it helps prevent spina bifida when the embryo is developing. Enjoy the rest of your pregnancy, I actually miss it although at the time I moaned like nobodies business at the bad back, constipation and heartburn etc
My GP told me to stop taking it after 12 weeks as there was not need but my MW said there is no harm in keeping taking it so I've been taking pregnacare (or Tesco's own version of this). I am rubbish at remembering to take it now that I don't have to but I don't think it's a big deal.
Hey the hermit jelly sweets have loads calcium in too unless veggie version I have taken santaogen all way through pregnancy however since about 30weeks have been a bit crap with it n forget more n more often but generally it gets taken n am 37weeks tommorow