Tell her you want to meet and talk about the next step. When you meet her, be real nice. Then insist on a pregnancy test - this MUST be done the same day - no postponing! Don't fall for her mind games
If she ain't pregnant, you are now sure she was faking it! RUN for the hills and don't look back! If a lady can fake a pregnancy to manipulate you, then if you stay with her you will be in for a rude shock and miserable future. She will use all possible under hand mechanisms to control you. She'll be crying 'on demand', pulling the silent treatment, threatening to commit suicide if you do a, b, c etc. Next you will be starting "I hate my life/I want to commit suicide" threads.
Lets all learn from OTHER people's mistakes. We don't live long enough to commit and learn from our own mistakes.
Never count on making a good sale. Have the purchase price be so attractive that even a mediocre sale gives good returns.