While we were there, we met a friendly Swedish couple who told us that they were into 'nudism'.

That has always struck me as a real crazy idea, but after we had been socialising with them for a couple of days, we decided that we would be willing to try it. So on several afternoons, the four of us lazed around the pool with no clothes on.

But things somehow went a bit wrong on the last evening of our stay. As usual, the four of us were swimming around naked in the pool, and we had all had one or two drinks.

The two Swedes seemed to get very warm and physical with us, and before very long, we were all laughing and hugging, and saying that we would always be friends.

Suddenly, I realised that my husband had gone off to a corner of the pool with the Swedish lady - and was kissing her. Seeing this, the Swedish guy started to put his lips on mine. To be frank, doc, I enjoyed it.

A few minutes later I saw, to my surprise, that my man was actually having sex with the lady, against the side wall of the pool.

Well doc, I might have given in to the Swedish man, but the fact was that we kept losing our balance, and the swimming pool water washed away my lubrication. So, he never managed to enter me, and although I discharged, he did not.

Just after this, one of the waiters arrived and started to clear up glasses and bottles noisily. So, that was the end of the action.

Next morning, we said 'goodbye' to them. I guess that both my husband and I felt that we had had a good time, that nobody got hurt, and that it was best to say no more about it.

However, about three weeks later, I found that I was pregnant. Doctor, I am not in the slightest doubt that this baby is my husband's. But he is real upset about the entire thing, and keeps getting angry with me.

He is saying things like "This is a little Swedish baby!" So, I am asking you, doc. Is there any way we could get a test done on the baby right now - to find out if it is my husband's? Personally, I am in no doubt whatever about it.

A. Well, this is the sort of problem that arises so often when people fool around with 'wife swapping'. Again and again, I have seen these situations go wrong. Your husband is clearly being very 'difficult,' but frankly, I do not understand why he is so angry. After all, he started things off by having sex with the Swedish lady. So, he is far from innocent.

Pregnancy issue

Let us turn to the question of your pregnancy. You say that the Swedish guy did NOT enter your vagina, and that he did not discharge. If that is true, then I must say that it is extremely unlikely that he is the father of your child.

Technically, it is JUST possible that he could have got you pregnant, because there is a remote chance that he produced some sperms and that they somehow drifted through the water and got into your body. But the odds against that must be huge.

Now, you ask me if any 'instant test' can be done right now, to prove that the baby is your husband's. Frankly, to do such a test during pregnancy would be enormously difficult and expensive. And there would be some risk to your health - and to the child's. I very much doubt if any 'gyno' would be willing to carry out that sort of 'invasive' procedure.

But when the child is born, let us hope that he resembles your husband! If by any chance he does not, then it would be quite easy for you to arrange a simple - and not too expensive - paternity test.

In the meantime, I strongly suggest that you and your man go for some marriage counselling. And, please, never try 'wife swapping' again.

A. This usually indicates bleeding somewhere in the reproductive 'piping.' It may not be too serious, but you must see a doc this week, please.

A. No. The headaches which you have had for the 25 years sound very like migraine. Please go to a doc and ask about trying a modern anti-migraine medication. Also, I think you should change to another type of Pill. Good luck.

A. Unfortunately, that may be difficult. I hope that your guy has had a full physical examination, to find out if he has any general health or lifestyle problems that could be put right.

Also, has he had a check-up of his scrotum to see if there are any varicose veins there? If there are, they could be removed by surgery, and that might help him.

Finally, he should do his best to keep his testicles cool, by wearing loose underwear. Tight clothing tends to overheat the testicles and so lower the sperm count. That is particularly likely in a hot climate.

A. I am afraid that the word 'oligomenorrhoea' just means 'scanty and infrequent periods'. So it is not a diagnosis - just a symptom.

There are many possible causes for your symptom. So I feel you need to see a doctor - preferably a 'gyno' - and have blood hormone tests and a scan. I am sure this problem can be solved, and I wish you well.

A. No, that is impossible. But you are living rather dangerously. In particular, you are at some risk of getting a sexually transmitted infection.

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