For an alpha male, enter your name as Zelda i.e. if she says you are not going yo have sex, do not react, it is a test, just keep escalating using push-pull and there is a 90% chance you will bang her (this assumes you already have her back at your place or hers)
I will not profess to be the super awesome alpha male or anything like that , BUT this line is very crucial for people who are getting stuck at this part of the game. In my recent experience, a women saying that ' we aren't having sex' is actually a pretty promising bet that they will indeed have sex. In the past year, its been nearly a 100% certainty in 3 distinct cases. These examples are delineated below:
1- About a year ago, I separated from my friends in the city. They had picked up and gone home with some girls and I was left stag to do my thing. After some motivation, I hit up the bar solo and managed to start a conversation with a chick @ the bar. The conversation went back and forth and included things like why guys should buy chicks drinks ( take a guess which side I was on), and eventually how she wasn't going to have sex with me. Bring her back to the hotel where my friends had fallen asleep. She had said all night about how we weren't going to do anything. A few hours after crashing in a hotel room with 5 other people, I do the deed and she leaves.
2- A few months back a friend of a friend comes out. She says no sex, but I can sleep over. That promise lasted about 10 minutes..
3- A few weeks ago was again in the city and ended up going home with a chick and her friend. She said nothing would happen. Of course I was batting 1.000 so decided to just crash. A few hours later I get woken up and do the deed.
Im sure there are more in the years past, but this is within the last 12 months. The point isn't to brag, its to state just how important this piece of advice is. ignore it at your own peril.