Trump did not turn over a law.
The law being turned over did not in any way make abortion illegal, though that's what the press would have had us believe, and as you likely did.
In the US, the lawmakers are supposed to make the laws, and the court rules on them.
The Democrats have had over two years to put together a federal abortion bill and have done nothing, because they need to save it as an issue. There is a bill right now in the Democrat majority senate that has been sitting for two years. H.R.3755
As far as I can tell, Trump has always been pro-choice, except for late term