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Can a women get pregnant from the precum ?
precum isnt supposed to cause pregnancy in normal situation , because its lake of suitable sperms that are able to survive the way to the egg and fertilize it , but in some people , some precum may contain suitable sperms and may cause pregnancy 
What are the chances of getting pregnant in this situation ?
its unlikely to get pregnant , because we guess it not in the ovulations days , besides the low chances of getting pregnant in this cases , but medically speaking , the chances are 14- 24% if the sexual intercourse was near or on the ovulations days which are usually around 12th-16th days of the period
What to do next ?
- dont worry , as we said its highly unlikely , but just to make sure , follow the next :
1. avoid having sexual intercourse between the 10th- 18th day of period
2. use condoms 
3. use pregnancy home test in the end of this period 
4. in case of pregnancy , consult an OBGYN doctor soon 
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