Postnatal burning during sex

Hi,

My wife had a C section delivery in early Oct 2007. Now it's Jan 2008.

We've been very careful and only started having intercourse about a month ago, and even then have only done so about 3 times. She complains of pain on entry, but that we suppose is normal.

However, our main concern is that last night, during intercourse, after entry, she complained of a consistent burning sensation. She then told me that she felt burning the other two times we had postnatal intercourse, but it wasn't as intense, so she ignored it. The previous 2 times we used both latex (flavoured) and polyurethane Trojan condoms with vasiline and last night we used a polyurethane condom with k-y jelly. Prior to getting pregnant and during pregnancy we just used vasiline (no condoms).

She never had a real postnatal checkup with an ob or gyny. Just a checkup with her family doctor (who also does normal deliveries and assisted in our C section) a month and a half after delivery and she said my wife was fine.

My wife's also going on a trip for several months to see her family, and we want to take full advantage of the time we have until then, but we're afraid to do anything. I don't even know if we'll have time to schedule a proper checkup with an ob-gyny before she leaves as we already bought her tickets, and we have no idea what could be causing the burning.

Any advice, information and insight would be greatly appreciated. Thanks!