Whoops. My advice, wear a rubber. ;) Really, what kind of advice could someone here possibly give without being in your situation? It's easy to give advice

Whoops. My advice, wear a rubber. ;) Really, what kind of advice could someone here possibly give without being in your situation? It's easy to give advice imagining some sort of perfect situation. Personally, I would wait until I could get some sort of confirmation the child is really mine before making any big decisions. If the child isn't yours, then nothing has really changed from what your situation was before (except that your "girlfriend" is going to be getting a bit bigger.) Otherwise, banging the co-founder seems like a bad idea. Ask Tiger Woods how "gettin' some on the side" can cause headaches for business. And Tiger Woods wasn't even "doing" his co-founder.