Yes, if the tummy is shaken strenuously it might lead to miscarriage..
Caffeine highly increases your chance of having a miscarriage.
It might in the first few weeks.
shortly after a miscarriage the HCG levels are still high, this might cause multiple ovulations which gives twins..
Yoga doesn't cause miscarriages, however if you are pregnant, practicing yoga and worry it might cause you a miscarriage, my advice is always: DON'T PRACTICE. While it may be illogical that you think that, if you do think yoga increases your risk, then if you have a miscarriage you may blame yourself and your practice.
There are many herbs that can cause miscarriage, if you are pregnant, research any herbal medications before taking. And ask your doctor since many medicines are based on plants and herbs and they can interact.Attempting abortion/induced miscarriage without being supervised by a doctor is an illegal abortion though, punished with 2-10 years in prison.
A miscarriage may cause vaginal irritation.
No, normal physical activity does not cause miscarriage.
Plan B DOESN'T cause a miscarriage! It prevents ovulation, thereby also preventing pregnancy. Which is why it has to be taken within 5 days of unprotected sex., though more effective within 3 days. Yes. In the U.S. one such medication is called "plan b"
No, the smell of cat litter cannot cause a miscarriage.
No, sperm doesn't cause early miscarriage.
Yes. LSD is known to cause uterus contractions, which can induce a miscarriage.