The other possible way to prevent pregnancy without a condom is to for the woman to consume the pill. Here again, the side effects are in number and one should consume the pill often. More than this, there are other possible ways to prevent pregnancy naturally without a condom. Take a look at these simple tips to avoid pregnancy. Mar 27, · The safe period is the best way to prevent pregnancy without a condom. This means you can make love between the 8th day to the 20th day of a woman’s menstrual cycle. Here the first day of the period signifies. 2.