At the time, no it wasn't. Politically, "conservative" generally means opposed to or approaching change with some degree of trepidation. As it stands, questions of marriage and abortion are (or if the 10th Amendment were held to, would be) the pervue of the States. This is a tacit assertion that the States should not be trusted with those decisions.
Nonsense.
This is the founding principle of our Republic and the aim should be to preserve, conserve if you prefer, just that:
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.