Alrighty, I will give that a go! :D

Hehe, that sounds cute! I can definitely give that a go! Easy peasy!

Thank you! it was just a quick doodle. Hehe. It's actually of my fursona, Vod...... In a devious state. Haha.

[Note: some of the following furaffinity links are NSFW]

Nice work! I really like this couple picture.

http://www.furaffinity.net/view/6784886/

Just to be clear, this isn't like a formal commision or anything, just asking for ideas, right?

Anyway, these are really just suggestions, don't think of it as me saying "I want it to look exactly like this," I don't want to hinder your creativity. I'm picturing a couple: a pregnant male and a non-pregnant female, both mammals of course. I don't have my own character, so feel free to use yours/make some up/whatever. I'm not picky on species but I tend to prefer faces with shorter snouts and more human like proportions.

Back to the idea I had: the pregnant male is in a reclining position like these (the first three are pregnant, the other two just look pregnant):

http://laenri.deviantart.com/art/Red-Panda-280573288?q=favby%3Ahyena444%2F8910124&qo=5

http://www.furaffinity.net/view/3413613/

http://www.furaffinity.net/view/2551681/

http://www.furaffinity.net/view/2769387/

http://www.furaffinity.net/view/836838/

 

For the positioning, I was thinking the female could be be kneeling down and touching/holding his belly similar to this pic http://www.furaffinity.net/view/6619775/ Dolphins don't really anthropomorphize well but I like the positioning.

This one's a bit more intimate. http://mikko90.deviantart.com/art/Embracing-my-dearest-114302313?q=favby%3Ahyena444%2F8910124&qo=81

Or if you want to get really intimate, and, this just depends on how far you want to go, I don't want to push you into drawing something you're not comfortable with, but maybe you could pose them like this http://www.furaffinity.net/view/6890432/ Just imagine that, but with a big belly on the male.

And finally, here's a pair of characters that I think would make a good couple. I'm not asking you to copy them, that would be stealing, just providing an example if you want ideas to incorporate similar ideas in your designs.

These two otters are styled differently, but their body types provide a nice complementing contrast.

http://www.furaffinity.net/view/3413613/

http://www.furaffinity.net/view/5786894/

He's big-bellied, peaceful, docile and nurturing. She's fit, athletic, assertive and full of energy. A bit of a role reversal of what traits are typically considered masculine and feminine. With mpreg, there's already a role reversal, so it makes sense to reinforce that with "non-traditional" personality traits. Of course I realize I'm mostly going on assumptions just by looking at the characters, but thinking about these things can really help develop a character, even if you're only drawing them and not writing about them.

Sorry, that was longer than I thought it would be.