I have posted this on another forum so I thought it might be useful. To answer the question above no you don't have to have it removed at a certain time of the month. Fitting is different but removal at any time. Good idea to wait a month before trying though. Make sure you start taking folic acid, get your rubella immunity checked and stay off the alcohol, cigarettes and caffeine for a MONTH before you start trying. Also good idea to wait for your cycle to come back to normal so you can spot any complications.
Thanks to everyone for posting all your comments. Its good to know the range of symtoms out there. I thought I would post my story and also try and summarise what I know.
There are two types of coil (IUD), one with a hormone and one without. They behave very different and can effect you differently after they're taken out.
If you have had sex within 7 days BEFORE the IUD is removed you can get pregnant as the sperm can stay around. It is possible to get pregnant as soon as its removed also.
The IUD with hormone.. the hormones (like the contraceptive pill) can take up to 6 months to leave your system. You can get pregnant straight away or it might take longer because of this.
For most people it can take up to a year to get pregnant with trying and no contraception and that's normal. As you get older your chance of conceiving gets lower. At 35 you have half the chance of conceiving than in your early twenties. Age has recently been shown to affect men also. Even if you're young healthy and normal it can still take a year to get pregnant. This is normal. Doctors are unlikely to give fertility tests before you've been trying a year.
If you do want to get pregnant remember to keep taking folic acid from a month before you try, stay off the alcohol cigarettes and caffeine and get your man to also! Also check your rubella (german measles) immunity. Ask your nurse for a blood test. Even if you had the jab at school at 12/13 you still need to check and get a booster BEFORE you get pregnant.
My experience of the coil. I had a coil fitted which was relatively painless, a bit uncomfortable. It was the one without the hormone. I had a lot of very VERY heavy periods, excrutiating pain and pain when not on my period also. It was uncomfortable for the whole 6 months I had it in. I had the coil removed 2 months ago and it was fine to remove. No infections, nothing wrong.
A month later I had a very light period. Really only spotting for about a day and a half, very little at all.
A month after that I have my period now and it seems normal.
I think from the posts above it is normal for your periods to take a while to come back to normal when its removed. It is possible to get pregnant straight away but it would be better to wait until you're having a cycle normal for you. If you have any other symptoms go to your doctor and insist you're checked out. Dont know what doctors in the US are like but in the UK you really have to insist sometimes if you know something is wrong. Don't wait. You may get symptoms similar to pregnancy. This may be because you really want to get pregnant. It may be due to a cyst or ectopic pregnancy. You must get it checked out.
For any kind of medication, contraception or getting pregnant have a good look round on the internet. The NHS Direct website isn't bad but there is lots of information out there.. just takes a little bit of time to find.
Hope this wasn't patronising.. just wanted to point out some information all in one place. Please correct anything above that you know to be wrong.
M.