The only possibility not to fast these two consecutive months is your disability. If you will be able after some time, a year or two or more, you must fast them then and feeding wouldn’t be accepted. If you have a real illness that doctors forbid you from fasting till you die, you can feed!
If a person doing the daytime of Ramadan did not fast yet he committed fornication, he is obliged to fast two consecutive months. Question is: Fasting two months is hard for me and i dont think i could do it maybe illness and negligence plus the next few months i will be travelling so i can the money straight away now, can i feed (60 people) the poor instead?