How can i be free from any future problem&complexity?

I am 21. I got my 1st job at pune . AS MY PESI (DADS SISTER) LIVES THERE WITH HER HUSBAND IN QUARTERS OF VEL I WAS ASKED TO STAY IN THERE HOUSE FOR A FEW WEEKS SO LONG I DON'T GET A SUITABLE ACCOMMODATION,MY AUNTY (PESI) HAS ONLY ONE DAUGHTER CHILD OF 7 YEARS AGE.MY UNCLE-IN-LAW (HUSBAND OF DADS SISTER) NEEDS TO GO IN OUT STATION FOR DUTY.WITHIN MY 8MONTHS STAY HE WAS OUT OF STATION FOR NEARLY8/9 WEEKS.MY PESI IS AN EXTRA ORDINARY BEAUTIFUL LADY WITH HER PINKISH WHITE BODY COMPLETION &34/30/36 FIGURE.WITHIN 15 DAYS OF MY ARRIVAL THERE WE (ME& MY PESI) BECAME UALY INVOLVED WITH EACH OTHER AND BECAME HABITUATED IN AND AVAILED IT WHENEVER WE GOT CHANCE. .AS A RESULT OF OUR REGULAR SHE CONCIEVED . NOW BOTH MY PESI&HER HUSBAND(HE KNOWS HIS OWN BABY) ARE INTERESTED TO TAKE A CHANCE IF THEY CAN HAVE A SON &DONT WANT TO GO FOR ABORTION.I AM REQUESTING MY AUNTY(PESI)TO GO FOR ABORTION OTHERWISE IT CAN CREAT MUCH COMLICASY IN OUR FUTURE LIFE. PLEASE ADVICE ME WHAT SHOULD I DO?