<s>[INST] Hi doctor, I am going to get married in four months. We want to know whether there is any other way to avoid pregnancy other than using condoms or taking pills. I have seen somewhere on the internet that if we do intercourse for some particular period, then pregnancy can be avoided. Is it true? If it is true, then what time it can be? My wife's period usually comes in the first fortnight, and always it is delayed by four to five days to the previous month. Another thing is that I wanted to ask whether there are any health implications for oral sex. What is the safest and least painful way for anal sex? Would sex toy be useful for making anal sex least painful? Please suggest. [/INST] Hi. For further information consult a sexologist online --> </s>