Thank you for the feedback!
There's no button to increase the preg in real life, either!! Just let your body take care of that. (growth occurs at 4AM and is halved if you didn't meet calorie requirements, 2000/day, after 20 days add 400/day per baby)
The weed button is actually an inventory that goes up to 5, make of that information what you will
I am considering going up to triplets, but that (and twins) will probably come with a penalty to how much you can stretch your stomach by overfilling it
I will add the suggestion for tooltips to the list~