Pregnant and anxious

Hi everyone, i found out i was pregnant

in november but unfortunately miscarried December 1st. Now for the last few weeks i've been so tired and nauseated all day every day and havent had my period since the miscarriage bleeding. So i took a pregnancy test and its very positive. Now i'm freaking out because i've had 2 miscarriages. I put off testing even though i knew i was pregnant because confirming it makes it real and something always seems to happen. According to glow i'm 8 weeks which is where i was at when i had my last miscarriageand i was 12 weeks the one before that. How do others who have been pregnant after miscarriage cope with the stress and worry.