Help!!

Michelle
So my last period was dec 21 thru the 24 I had sex on Jan 1st and ovulation is from the 4 thru the 9th I had sex on the 11th like around 2:00am and then had sex two more times In the afternoon my ovia app said that on the 11th I have 8.5 chance of window chance of pregnancy been having pain on my lower don't know what it is