Can't resist adding my love for the jeanswest ones. I got the straight leg + bootcut. I wear the straight leg ones all weekend! They are super comfy but dont look like old lady jeans (iykwim). But do get the size that fits your legs now. I bought the bootcut one size up (thinking I'd get bigger) but haven't been able to wear them yet.
Yep, I got the JW straight leg and bootcut and I'm loving them! I am quite tall too and the length is great Mine were 2 for $99. Like Rosie said, get them in your current size for your legs as they will stretch with you. Best maternity items I have ever bought