swelling..

hello, yes I know none of you are doctors, and I should all a real doctor, but my phone's off, only works on wifi, and I'm at work. so for now too I get home, please help, advice. I'm 5 weeks pregnant today. And 15 mins ago, one my legs started to hurt, so I stood up, and my whole leg was swollen. my other leg was slightly swollen, but this was like, I got stung by a bee. there feels like a shooting pain in it. I hate to sound stupid, but is this normal in pregnancy. or has this happened to anyone else.