Ok so the mystery was solved. Charlotte is indeed a grass spider (non dangerous) . This is a week after she laid her eggs. I traumatized her for a bit after having destroyed her web to get her and the babies to the newer , larger tank before they hatched. I put the egg sack on a twig I found outside. She ran around like a nut for 5 minutes but once she found her eggs shes been calm and hovering around them non stop. Since I had to peel quite a few layers of web from around the sack , the eggs were easily seen inside. In the pic you can see the darker bottom half which are the eggs that only fill the sack about halfway and are about the size of couscous. (sorry to ruin that for you couscous lovers XD )Not sure how long it takes for the eggs to hatch but I will probably video record them coming out if I catch it in time. Til then, spider lovers, enjoy the pic updates.