Can’t see in pregnancy

sabrina

When I stand up I don’t see black dots or spots my vision goes completely gone! Like my eyes are wide open but I can’t see anything at all for a good 3 secs and I lose my balance and fall or have to hold on to something, has anyone had this happen to you? I’m only 12 weeks along with my first and this happens wether I get up super slow or not idk what to do