 [ Symptoms ] what is my risk of pregancy when i switch the pill to a different brand with different hormones was on viorele for about one year desogestrel and ethinyl estradiol but recently switched to altavera levonorgestrel and ethinyl estradiol i have just completed the first packet and am on the inactive pill four days into these my period is late and i have had sex in the past week previously i would have expected to have had my period start about now is the lateness due to the switch and my body adjusting or has the switch in hormones increased my risk of pregnancy [ Disease ] this depends on your symptoms if you have nasal or sinus congestion then a decongestant can be helpful if you have drainage    either a runny nose or postnasal drip or itchy watery eyes    then an antihistamine may be helpful over the counter antihistamines often make people drowsy decongestants can make people hyper or keep them awake antihistamines can make secretions thick which can be a problem for people with asthma keep in mind that both these medications may interact with other drugs you may be taking for conditions such as heart disease and they may worsen some conditions discuss with your doctor or pharmacist which cold medication may be best for you