Juli, I do find that odd about the cucumbers. Cukes are really easy to start from seed and I use seed from past years all the time with no problems. Maybe it is just too cool for them to take off until some warmer weather. Spring has been really odd this year.
I hope it warms up so you can get your tomato plants in and so your garden takes off. Mine has in spite of cooler weather. Nothing beats home grown veggies.
