<s>[INST] Hai,I am 23 years old I am suffering from irregular periods.. Scan and Harmon test every thing is ok... But I had pcdo so doc preferred to use krimson35... My question is while using these tablets we have to use preqution during intercourse or it's not necessary...if I am not using condoms then I will get pregnancy?  Plz answer my question thanku.. [/INST] Hello ma'am and welcome.It is best to use contraceptive methods like the use of condoms despite of the condition and treatment you are receiving. We cannot say for sure whether or not you will conceive without the use of condoms, and it is best not to experiment either. So please go ahead and use condoms.Hope this helps.Best wishes. </s>