Thanks for the query.
After the ovulation the ovum will remain alive for a period of around 24 hours.
So as you had intercourse around that period, there is possibility for pregnancy
If your doctor suggests you can go for progesterone
supplementation which helps in implantation
and in maintenance of pregnancy.
Some amount cramping, pain abdomen can be seen during the period of ovulation and usually that will subside soon.
For more details:http://srsree.blogspot.in/2012/08/mittelschmerz