preseed & misscarriages? ?

I asked this question in TTC. but was recommended to ask here. --- TTC 11 months & bought preseed yesterday. While looking at other forums saw where many people were able to get preg right away byt sadly misscarried afterwards.

My question is. is this proven that Preseed can cause misscarriages ? haven't seen any studies online with adverse affects, just TTC forums.

anyone Conceive w preseed no problem & carry to term? anyone conceive with it & misscarry? just freaking out but not sure if I should be or not. I know everyone is diff but seems like every page I click on says they misscarried. :((