Scotland Women proved their mettle with a remarkable comeback against Wales to break a seven-year Six Nations hoodoo to kick-off a massive weekend for Scottish rugby.Scrum-half Sarah Law held her nerve to seal the Scots’ one-point win with a successful penalty goal in the dying minutes of the match at Broadwood Stadium.The final whistle prompted incredible scenes as the players, and the crowd, celebrated Scotland’s first win in the Six Nations since 2010.Shade Munro’s charges fought back from a 14-point deficit with the turning point coming just before half-time when the sides youngest player Lisa Thomson, 19, crashed through the Welsh defence to score under the posts.Law duly converted to close the gap to seven points and put the Scots back into the game.”It was a boost and a reward for all our hard work in the first half,” Law said after the match.”We knew if we could come out in the second half and play like that straight away we would come away with the win.  We had the intent, it was about controlling our game and finishing off opportunities.”The Scotland changing room was positive at half-time with discussions focused on remaining composed and capitalising on chances.”That was the chat at half time, if we kept our composure and played with the intent and aggression we knew we could we would get those opportunities,” Law continued.It was just about taking those opportunities when we were presented with them.”After continuous pressure on the Welsh line, a handy off-load from number 8 Jade Konkel off the back of a scrum set the wheels in motion with Law flicking the ball over to wing Rhona Lloyd, who ran in their second try with 20 minutes left on the clock.Two points down and three minutes to go, the Scots continued to pile on the pressure and were given an opportunity to claim a momentous win with a penalty goal.When asked what was going through her mind at the time, Law said: “It’s just about going through the motions.”The deserved win came following a narrow defeat to Ireland, who scored in the final play of the game in the opening round of the Women’s Six Nations.”We had opportunities against Ireland but we didn’t have the composure in the rights areas of the pitch to finish chances off,” Law said.”I think we had that and that was the difference.”We knew as a squad that our performances were getting better and better. We knew that going into the game that if we performed the way we knew we could we would be able to come away with a win and that’s what we did. “Scotland Women, who are fourth on the table with five points, will face table-toppers England at The Stoop, Twickenham on Saturday 11 March (kick-off 1pm).”Now we have come away with a win nothing is going to change going into the next game,” Law said.”We will be looking for another good solid performance. We weren’t perfect out there by no means, it’s about building and improving.