Hymen intact and no penetration but still pregnancy can happen??

My girlfriend is 22 years old. We got little active on 23rd of this month and indulged in deep touching. I did not penetrate in her. I touched my part on her's and it was with her innerwear worn. I had ejaculated on thighs and maybe some fell on her vagina. Her hymen is still intact and she had washed the secretion of mine soon after I had ejaculated. She had washed it with soap and water.
I need to know whether she can get pregnant? We are very tensed. It is our first time. We need help. She had got her periods on 29th last month and is expecting on 27th this month. Please help us out. And if she can then what should be the next step? We are waiting for her periods to come.