Conversation: The conversation between human and AI assistant.
[|Human|] Hi my galfriend was using triphasil and the nurse gave her trigastrel now saying its the same, she ended trphasil with a brown pill( Which has meds) and started the trigastrel with a red ( No meds) is the a chance she will be pregnant because of thses changes and how long does she have to wait b4 unprotected sex ?
[|AI|]  Hello, Though both the pills have the same combination, the bio-availability may differ and hence, protected intercourse is ideal in this cycle. She may start without additional protection from next cycle onward. It is difficult to say if she has conceived already during this cycle. You have to wait until her expected period and go for further investigation if she does not see her period. Pregnancy can happen if ovulation occurs as there is a change of pills in mid-cycle and not from day 1. Hope this helps.