I have one fruit set, but it is not getting much bigger.IF,IF you have a good fruit set you will probably be able to get ripe tomatoes. I used to have a commercial tomato farm in the San Leon/Bacliff area, close to where you are and in a lot of years only had light frosts until about Jan. You can protect your plant with a product called Nsulate. It is a fabric and one layer will give about 6 degrees of protection, down to about 26F. 2 layers about 8 or 9 degrees.
I have plenty of yellow blossoms.
Is the lack of fruit due to the high temps in Texas?