When to go to hospital

I've had hip pain for yrs. I also have lupus so it's been shrugged off to inflammation and I just deal, even when it's excruciating. I work on my feet the entire shift and wear insoles. Now that I'm pregnant it's so much worse. Even days that I don't work (I have 3 days off together) it's bad. Sometimes it gives out and I almost fall. It's never been as bad as it is now. I've been heating/icing for the past 3 hrs and nothing. I absolutely can't bear weight. The pain either is excruciating or my hip gives out, and my leg is also numb on/off. Today is my "Monday" so it's just the beginning. I just hate making a big deal of things and a trip to the hospital is a big deal (not to mention expensive). What would you ladies do? My husband is at work and I've been lying in bed crying on/off because of the pain. Thanks in advance for the advice.