'I don't know who the father of my child is'
We were arguing about money and bills, the usual stuff really, and one of us quite often ended up spending the night in the spare bedroom.
It was about this time that I bumped into an old boyfriend, Terry. We'd dated years ago and for one reason and another it didn't work out.
I needed someone to talk to and Terry just happened to be there.
One night after Gavin and I had a huge row, I stormed out and found myself at Terry's. One thing led to another and I ended up spending the night there.
I never told Gavin what happened, but the whole business with Terry freaked me out and I stopped seeing him immediately.
I also patched things up with Gavin really quickly, because the thought of life without him scared me.
About a month or so later, I realised I was pregnant. Gavin was over the moon and, of course, he dotes on Sammy, but I can't help wondering if he really is the father.
I know I probably ought to find out, but it scares me that I'll get the result I don't want.
Penny, 34, Bristol
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