Adrija, the fertile window is generally cycle day 8 through 16 of 28, so you are low risk. There was also no suggestion of semen getting into your vagina. You are safe this time. Ejaculation in the butt crack that could run down to the vagina would be a different story.
These games go a little further each time, so you should be discussing proper birth control. Pull out sex is risky. Why don't you buy some condoms and at least get familiar with how they work. Download a period tracker app and correlate its findings with your own observations of signs of ovulation. That way you can stay away from high risk days. When you get ready to go all the way some proper lubricant and vaginal spermicide should also be on the shopping list. Remember that a woman's sex drive is highest when she is close to ovulation, not fair I know, but that is the way the maker designed us.