Although you shouldn't worry if there was slight protein in your urine i.e. (+1 protein), you should be more cautious as this could be a sign of preeclampsia if combined with high blood pressure.......
Other signs to look for could include:
Headaches
Swelling of the hands and face (edema)
Weight gain
More than 2 pounds per week
Sudden weight gain over 1 - 2 days
Note: Some swelling of the feet and ankles is considered normal with pregnancy.
Other symptoms that can occur with this disease:
Abdominal pain
Agitation
Decreased urine output
Nausea and vomiting
Vision changes
I would just watch this more closely as this could be a start of preeclampsia, but may not be anything......The only treatment for preeclampsia is rest, and if the symptoms persist, delivery of the baby...... I hope everything works out for you!