Not really, even cecily's quest probably wouldn't be worth the time compared to just rebirthing again. If you do your rebirthing via death and not via paying for ship tickets then money will inevitably keep piling up since there's no money sink other than consumables and traveling, but if you're in somewhat of a hurry then your best bet is random loot. Fishcave east of the pirate den is pretty good if you can stand doing the puzzle (free fish and chicks there as well for food and xp if you need it). If you ever feel like practicing lightning magic then you can try abomination places, the mutated meat (which for some odd reason can be cooked into human meat) is also profitable but you'll probably want to mod looting to pick up meat faster since it drops everywhere in massive quantities. Mutated mushrooms aren't as good as random loot, but you can find up to 18 at a time which will earn about half a gold coin if you can sell them for around 600 TP. It's a decent alternative if you're in it mostly for the abomination killing.
Since the pregnancy has been shortened rebirth might make a close second best, but it will depend on whether you can find a fast drill to repeat that you can stomach doing long enough.
Not 100% sure if it actually works that way, but if you don't sell any of the loot you find and just hold on to it in the bank then on your next rebirth you can inflate the value of your stuff by dumping all your points in wisdom. Wisdom has a much bigger effect on the selling value of non-coin items.
Edit: Forgot to mention that if you're gonna grind random loot it'll be worthwhile to complete Adam's quests first, the guy you get the musket from, because then the musket can appear as random loot which will increase the average value.