So I have been looking on the wiki and the forum, and haven't found a clear explanation of how to get an ovipositor for my pc. I know there is a drider one and a bee one but I don't know either
Once you have a bee abdomen and a high enough bee score you can eventually grow the ovipositor as well with additional pure honey uses. Each bee attribute such as antennae, wings, etc add to your bee score. Not sure how much of a bee score is required.
As for the drider ovipositor, it works the same way as the bee. Per the wik: