Question please help

brittany
I missed three weeks of tri-previfem birth control pills got a positive ovulation test on the cycle day 20 had stretch cm on cycle day 21 n bding the same day i had the stretchy cm on my ovulation test the test line was darker then the control um 5 dpo if i was to take my birth control n found out later i was pregnant will it affect the baby or should i wait until af arrive before i start back taking birth control i had miss place my pills n found them today i have two more in my week three to take please help me