Vitamin A???

I’ve always heard too much vitamin A causes miscarriage. My vitamin has 50% daily value in it... I ate a bagel this morning which had 80%! And milk has 10% so that’s 90% daily value - didn’t realize this or wouldn’t are the bagel. Should I skip my vitamin? I’ve skipped it Iike the last 3 nights because of nausea .. almost 15 weeks