Will I get pregnant with pre-semen entering vagina through fingering?

Hello,

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Firstly relax. Your next menses naturally should have been expected only by the same date as the previous one after taking Regesterone, as your dates have changed now). So now you are 14 days late for your scheduled menses. Also, ideally, you should get an ultrasound pelvis done to check for the state of ovulation in the ovaries, as to whether you have already ovulated or ovulation is still pending secondary to PCOD (USG would be the gold standard), but if we still consider that you may have ovulated late and hence no menses, considering that pre-cum got rubbed inside vagina during fingering in your case, this can logically lead to pregnancy. But chances of conception are minimal but still exist. The best would be to opt for an emergency contraceptive pill like an I-pill within 72 hours of intercourse to avoid unplanned pregnancy if at all chances occur considering even pre-cum contains live sperm. Post I-pill intake, you can expect a withdrawal bleed in the next 3 to 5 days and once the bleeding occurs, endometrium shall be shed and you would be pregnancy safe. If no bleeding, then the next best step shall be to get a serum beta hCG test done after seven days post-last intercourse to rule out any pregnancy. (This is a blood test and is most sensitive for pregnancy). If the hCG levels are less than 3 mIU, then you can rest assured that you are not pregnant and then can wait for the withdrawal to bleed naturally.