Hi,
Welcome to ehealthforum,
It is difficult to comment on the stretching ability of the skin without examining you. If there is scar tissue or keloid formation, it might be difficult. However, pregnancy does cause release of hormones that causes changes in skin making it more soft and supple. If the ovarian function is normal and if there are no other factors affecting fertility levels, chances of pregnancy are possible. Visit your doctor/gynecologist for further evaluation and assistance. Be in regular monitoring and follow-up with your treating doctor/gynecologist.
Take care.