After a miscarriage you can tell if your pregnant again about 2-3 weeks after the previous pregnancy. Im sorry about your loss. YOu may ovulate about 2 weeks after an early miscarriage so if you have intercourse then you might have a positive test 2 weeks after that.
Yes you can have a miscarriage at 4 weeks I have hade a miscarriage at 2 weeks.
You should wait a couple of weeks for the healing but you can always get pregnant both before the 2 weeks and after so use protection.
After 2-4 weeks.
yes, lots of women ovulate 2 to 2.5 weeks after a miscarriage and are especially fertile.
Absolutely. You can ovulate within about 2 weeks of a miscarriage and if you ovulate and have sex you can get pregnant.
Yes you can.
Normal bleed after a miscarriage is 1-2 weeks so it's not your period. You get your period back sometimes within 8 weeks from the miscarriage.
Possible if you took no protection and were ovulating.