Hi I had misscarriage and my womb is clean now...

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Regarding your question,

What is fertile days

They are groups of days where pregnancy can occurred at highest percentage of sexual intercourse was done. The ovulation day is 14 days before the expected date of next period. three to four days before and ovulation day is the fertile days.

Can i use condoms during sex

Based on your question, there is no problem to use condom as contraceptive method during sex after ten days of your last menses and there is no problem about this
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