VERY CONCERNED

I am exactly 9 weeks pregnant today . Yesterday , when I woke up to use the bathroom both of my calf muscles felt like I had just did an intense work out the night before and I could barely walk at first . The thing is , I DIDNT . Actually I took a dose of Terconazole preacribed by my OB for a yeast infection. I had already inserted it when I read it is not recommended in the first trimester so immediately I tried to get it out. I am not sure if its related but I thought I would add that. The pain gets better with movement like after I've been walking for awhile. So initially I thought it went away .. until I got off work and sat down for a little while, when I got back up to walk , it was hard to walk at first they felt sore . Same for when I lay down for awhile. It is now a new day and I woke up to use the bathroom, I could barely walk they are so sore . They don't look swollen or red & they aren't hott to the touch . But they are sore to touch. I read I could also be low on potassium however I ate a banana yesterday before work , & I am eating one right now . What could this be ?? I am going to the urgent care later just to be safe. Has anyone else experienced this ??