Nervous about what my obgyn will say?

im 25 weeks pregnant and the sunday before christmas i got really sick. i called my obgyn and told him i havvent been able to eat or drink and i feel dehydrated and i have a low grade temperature. he told me just to wait until the next day and if i still cant eat then get to a hospital. well my temp went up to 102 in 3 hours so my husband just drove me to the nearest hospital. ive never been pregnant or even put into the hospital before and they told me next time i need to go to the hospital where my doctor delivers at. there are two hospitals really close together that he delivers at and hes never even told me which one to go to. hes not a very personable doctor, he has a dry sense of humor so im a little worried he will be rude to me about going to a different hospital. what do i tell him and what should i say if he is rude to me??