I think you will need to see a doctor, just going on symptoms without seeing a patient is not a good way of doing a diagnosis. Would you be able to call an ambulance and get to the hospital OK? They could send an ambulance car if you're worried about arriving in the big van with lights blazing. Or could you get a doctor to your house to see you? If you call the paramedics they can help at home without taking you to the hospital too.

Oh, and your DH could take an afternoon off for an antenatal appointment. No-one's holding a knife to his throat and forcing him to work - he doesn't HAVE to, he CHOOSES to.