High Risk


so ladies I was told from my previous doctor that since my last son was born premature all pregnancies after that would be high risk. I'm 5 weeks and 4 days and I'm a postal worker, so I'm walking no less than 6+ miles a day im nervous because I don't want my job to affect this pregnancy I know I'm suppose to take it easy not lifting heavy things and pacing myself but can the walking be too much? my first appointment is August 15th which seems like it's so far away. any other ladies high risk? how are you handling it?