I first saw this movie in the 90’s, so it might be made in the 80’s…it was in color

It starts out showing this woman, who may be a teacher, can’t have children. When she goes out to have a good time, she’s dancing with this man and he kisses her deeply… essentially impregnating her. He kidnaps her and They go on the run to get him back to his people. She has to eat these egg things to help with the pregnancy. Eventually they make it where they need to go but alien guy dies and she gives away the baby. The pregnancy lasts about 3 days if I remember correctly.

anyone please help, I’d appreciate it.