Hi,
Welcome to ehealthforum,
The symptoms that you describe could be suggestive of UTI. Consider visiting your doctor/gynecologist for a thorough examination and urine test to confirm/rule out infection. Get started on treatment as indicated.
If your partner had semen or pre-cum/pre-ejaculatory fluid on his hands when he touched the vagina, chances of pregnancy cannot be ruled out (as pre-cum is known to contain sperms) especially if you were during your fertile days at time of sexual contact.
Consider visiting your doctor/gynecologist for further evaluation/examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Drink plenty of water. Take adequate rest. Maintain healthy diet.
Take care.