High blood pressure

So I’m not really sure what to do. Yesterday around 5pm I wasn’t feeling to well (almost like faint and light headed) My mom has health issues so I checked my blood pressure and blood sugar. My bp was a little high at 145 over 95 I kept checking and it went down to 130/60 which is normal. I left my moms house and started to feel this way again about an hour or two later so I stoped at shoppers to check it and it was 162/140 which is really high so I borrowed my moms bp machine and kept track of it. Basically if I’m laying down it’s 117/50 but if I get up to pee or walk around it’s around 140/80 but if I do anything more like walk the dog it goes way up to like 170/120. I’m not really sure what to do, I have been resting and trying not to do anything but I’m not suppose to see my doctor for another 2 weeks and it’s very hard to get in so I’m not sure if I call Monday if I’ll be able to get in. Should I go the hospital? I should also mention that I’m 20 weeks pregnant with high risk twins. If anyone has any advice or experienced this I would appreciate the help!